CVE-2020-3120 : A vulnerability in the Cisco Discovery Protocol implementation for Cisco FXOS So

A vulnerability in the Cisco Discovery Protocol implementation for Cisco FXOS Software, Cisco IOS XR Software, and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to a missing check when the affected software processes Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to exhaust system memory, causing the device to reload. Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).

Published 2020-02-05 18:15:11

Updated 2023-04-20 15:27:48

Source Cisco Systems, Inc.

View at NVD, CVE.org

Vulnerability category: OverflowDenial of service

Products affected by CVE-2020-3120

Cisco » Ios Xr » Version: 5.2.5
cpe:2.3:o:cisco:ios_xr:5.2.5:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Ncs 6000 » Version: N/A
Cisco » Ios Xr » Version: 6.6.25
cpe:2.3:o:cisco:ios_xr:6.6.25:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Ncs 560 » Version: N/A
Cisco » Ios Xr » Version: 7.0.1
cpe:2.3:o:cisco:ios_xr:7.0.1:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Ncs 540l » Version: N/A
Cisco » Ios Xr » Version: 6.5.3
cpe:2.3:o:cisco:ios_xr:6.5.3:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Asr 9000v » Version: N/A
When used together with: Cisco » Asr 9001 » Version: N/A
When used together with: Cisco » Asr 9006 » Version: N/A
When used together with: Cisco » Asr 9010 » Version: N/A
When used together with: Cisco » Asr 9901 » Version: N/A
When used together with: Cisco » Asr 9904 » Version: N/A
When used together with: Cisco » Asr 9906 » Version: N/A
When used together with: Cisco » Asr 9910 » Version: N/A
When used together with: Cisco » Asr 9912 » Version: N/A
When used together with: Cisco » Asr 9922 » Version: N/A
When used together with: Cisco » Ncs 5001 » Version: N/A
When used together with: Cisco » Ncs 5002 » Version: N/A
When used together with: Cisco » Ncs 5011 » Version: N/A
When used together with: Cisco » Ncs 540-12z20g-sys-a » Version: N/A
When used together with: Cisco » Ncs 540-12z20g-sys-d » Version: N/A
When used together with: Cisco » Ncs 540-24z8q2c-sys » Version: N/A
When used together with: Cisco » Ncs 540-28z4c-sys-a » Version: N/A
When used together with: Cisco » Ncs 540-28z4c-sys-d » Version: N/A
When used together with: Cisco » Ncs 540-acc-sys » Version: N/A
When used together with: Cisco » Ncs 540x-12z16g-sys-a » Version: N/A
When used together with: Cisco » Ncs 540x-12z16g-sys-d » Version: N/A
When used together with: Cisco » Ncs 540x-16z4g8q2c-a » Version: N/A
When used together with: Cisco » Ncs 540x-16z4g8q2c-d » Version: N/A
When used together with: Cisco » Ncs 540x-acc-sys » Version: N/A
When used together with: Cisco » Ncs 5501 » Version: N/A
When used together with: Cisco » Ncs 5501-se » Version: N/A
When used together with: Cisco » Ncs 5502 » Version: N/A
When used together with: Cisco » Ncs 5502-se » Version: N/A
When used together with: Cisco » Ncs 5508 » Version: N/A
When used together with: Cisco » Ncs 5516 » Version: N/A
When used together with: Cisco » Ncs 560 » Version: N/A
When used together with: Cisco » Xrv 9000 » Version: N/A
Cisco » Ios Xr » Version: 6.4.2
cpe:2.3:o:cisco:ios_xr:6.4.2:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Asr 9000v » Version: N/A
When used together with: Cisco » Asr 9001 » Version: N/A
When used together with: Cisco » Asr 9006 » Version: N/A
When used together with: Cisco » Asr 9010 » Version: N/A
When used together with: Cisco » Asr 9901 » Version: N/A
When used together with: Cisco » Asr 9904 » Version: N/A
When used together with: Cisco » Asr 9906 » Version: N/A
When used together with: Cisco » Asr 9910 » Version: N/A
When used together with: Cisco » Asr 9912 » Version: N/A
When used together with: Cisco » Asr 9922 » Version: N/A
When used together with: Cisco » CRS » Version: N/A
Cisco » Nx-os
Versions before (<) 7.3\(6\)n1\(1\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 5548p » Version: N/A
When used together with: Cisco » Nexus 5548up » Version: N/A
When used together with: Cisco » Nexus 5596t » Version: N/A
When used together with: Cisco » Nexus 5596up » Version: N/A
When used together with: Cisco » Nexus 56128p » Version: N/A
When used together with: Cisco » Nexus 5624q » Version: N/A
When used together with: Cisco » Nexus 5648q » Version: N/A
When used together with: Cisco » Nexus 5672up » Version: N/A
When used together with: Cisco » Nexus 5696q » Version: N/A
Cisco » Nx-os
Versions from including (>=) 7.2 and before (<) 7.3\(5\)d1\(1\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 7000 » Version: N/A
When used together with: Cisco » Nexus 7700 » Version: N/A
Cisco » Nx-os
Versions from including (>=) 7.0\(3\)i and before (<) 7.0\(3\)i7\(8\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 3016 » Version: N/A
When used together with: Cisco » Nexus 3048 » Version: N/A
When used together with: Cisco » Nexus 3064 » Version: N/A
When used together with: Cisco » Nexus 3064-t » Version: N/A
When used together with: Cisco » Nexus 31108pc-v » Version: N/A
When used together with: Cisco » Nexus 31108tc-v » Version: N/A
When used together with: Cisco » Nexus 31128pq » Version: N/A
When used together with: Cisco » Nexus 3132c-z » Version: N/A
When used together with: Cisco » Nexus 3132q » Version: N/A
When used together with: Cisco » Nexus 3132q-v » Version: N/A
When used together with: Cisco » Nexus 3132q-xl » Version: N/A
When used together with: Cisco » Nexus 3164q » Version: N/A
When used together with: Cisco » Nexus 3172 » Version: N/A
When used together with: Cisco » Nexus 3172pq-xl » Version: N/A
When used together with: Cisco » Nexus 3172tq » Version: N/A
When used together with: Cisco » Nexus 3172tq-32t » Version: N/A
When used together with: Cisco » Nexus 3172tq-xl » Version: N/A
When used together with: Cisco » Nexus 3232c » Version: N/A
When used together with: Cisco » Nexus 3264c-e » Version: N/A
When used together with: Cisco » Nexus 3264q » Version: N/A
When used together with: Cisco » Nexus 3408-s » Version: N/A
When used together with: Cisco » Nexus 34180yc » Version: N/A
When used together with: Cisco » Nexus 3432d-s » Version: N/A
When used together with: Cisco » Nexus 3464c » Version: N/A
When used together with: Cisco » Nexus 3524 » Version: N/A
When used together with: Cisco » Nexus 3524-x » Version: N/A
When used together with: Cisco » Nexus 3524-xl » Version: N/A
When used together with: Cisco » Nexus 3548 » Version: N/A
When used together with: Cisco » Nexus 3548-x » Version: N/A
When used together with: Cisco » Nexus 3548-xl » Version: N/A
When used together with: Cisco » Nexus 36180yc-r » Version: N/A
When used together with: Cisco » Nexus 3636c-r » Version: N/A
When used together with: Cisco » Nexus 9000v » Version: N/A
When used together with: Cisco » Nexus 92160yc-x » Version: N/A
When used together with: Cisco » Nexus 92300yc » Version: N/A
When used together with: Cisco » Nexus 92304qc » Version: N/A
When used together with: Cisco » Nexus 92348gc-x » Version: N/A
When used together with: Cisco » Nexus 9236c » Version: N/A
When used together with: Cisco » Nexus 9272q » Version: N/A
When used together with: Cisco » Nexus 93108tc-ex » Version: N/A
When used together with: Cisco » Nexus 93108tc-fx » Version: N/A
When used together with: Cisco » Nexus 93120tx » Version: N/A
When used together with: Cisco » Nexus 93128tx » Version: N/A
When used together with: Cisco » Nexus 93180lc-ex » Version: N/A
When used together with: Cisco » Nexus 93180yc-ex » Version: N/A
When used together with: Cisco » Nexus 93180yc-fx » Version: N/A
When used together with: Cisco » Nexus 93216tc-fx2 » Version: N/A
When used together with: Cisco » Nexus 93240yc-fx2 » Version: N/A
When used together with: Cisco » Nexus 9332c » Version: N/A
When used together with: Cisco » Nexus 9332pq » Version: N/A
When used together with: Cisco » Nexus 93360yc-fx2 » Version: N/A
When used together with: Cisco » Nexus 9336c-fx2 » Version: N/A
When used together with: Cisco » Nexus 9336pq Aci Spine » Version: N/A
When used together with: Cisco » Nexus 9348gc-fxp » Version: N/A
When used together with: Cisco » Nexus 9364c » Version: N/A
When used together with: Cisco » Nexus 9372px » Version: N/A
When used together with: Cisco » Nexus 9372px-e » Version: N/A
When used together with: Cisco » Nexus 9372tx » Version: N/A
When used together with: Cisco » Nexus 9372tx-e » Version: N/A
When used together with: Cisco » Nexus 9396px » Version: N/A
When used together with: Cisco » Nexus 9396tx » Version: N/A
When used together with: Cisco » Nexus 9504 » Version: N/A
When used together with: Cisco » Nexus 9508 » Version: N/A
When used together with: Cisco » Nexus 9516 » Version: N/A
Cisco » Nx-os
Versions before (<) 6.2\(24\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 7000 » Version: N/A
When used together with: Cisco » Nexus 7700 » Version: N/A
Cisco » Nx-os
Versions from including (>=) 8.0 and before (<) 8.2\(5\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 7000 » Version: N/A
When used together with: Cisco » Nexus 7700 » Version: N/A
Cisco » Nx-os
Versions before (<) 13.2\(9b\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 9000v » Version: N/A
When used together with: Cisco » Nexus 92160yc-x » Version: N/A
When used together with: Cisco » Nexus 92300yc » Version: N/A
When used together with: Cisco » Nexus 92304qc » Version: N/A
When used together with: Cisco » Nexus 92348gc-x » Version: N/A
When used together with: Cisco » Nexus 9236c » Version: N/A
When used together with: Cisco » Nexus 9272q » Version: N/A
When used together with: Cisco » Nexus 93108tc-ex » Version: N/A
When used together with: Cisco » Nexus 93108tc-fx » Version: N/A
When used together with: Cisco » Nexus 93120tx » Version: N/A
When used together with: Cisco » Nexus 93128tx » Version: N/A
When used together with: Cisco » Nexus 93180lc-ex » Version: N/A
When used together with: Cisco » Nexus 93180yc-ex » Version: N/A
When used together with: Cisco » Nexus 93180yc-fx » Version: N/A
When used together with: Cisco » Nexus 93216tc-fx2 » Version: N/A
When used together with: Cisco » Nexus 93240yc-fx2 » Version: N/A
When used together with: Cisco » Nexus 9332c » Version: N/A
When used together with: Cisco » Nexus 9332pq » Version: N/A
When used together with: Cisco » Nexus 93360yc-fx2 » Version: N/A
When used together with: Cisco » Nexus 9336c-fx2 » Version: N/A
When used together with: Cisco » Nexus 9336pq Aci Spine » Version: N/A
When used together with: Cisco » Nexus 9348gc-fxp » Version: N/A
When used together with: Cisco » Nexus 9364c » Version: N/A
When used together with: Cisco » Nexus 9372px » Version: N/A
When used together with: Cisco » Nexus 9372px-e » Version: N/A
When used together with: Cisco » Nexus 9372tx » Version: N/A
When used together with: Cisco » Nexus 9372tx-e » Version: N/A
When used together with: Cisco » Nexus 9396px » Version: N/A
When used together with: Cisco » Nexus 9396tx » Version: N/A
When used together with: Cisco » Nexus 9504 » Version: N/A
When used together with: Cisco » Nexus 9508 » Version: N/A
When used together with: Cisco » Nexus 9516 » Version: N/A
Cisco » Nx-os
Versions from including (>=) 7.0\(3\)f2 and before (<) 9.3\(2\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 3016 » Version: N/A
When used together with: Cisco » Nexus 3048 » Version: N/A
When used together with: Cisco » Nexus 3064 » Version: N/A
When used together with: Cisco » Nexus 3064-t » Version: N/A
When used together with: Cisco » Nexus 31108pc-v » Version: N/A
When used together with: Cisco » Nexus 31108tc-v » Version: N/A
When used together with: Cisco » Nexus 31128pq » Version: N/A
When used together with: Cisco » Nexus 3132c-z » Version: N/A
When used together with: Cisco » Nexus 3132q » Version: N/A
When used together with: Cisco » Nexus 3132q-v » Version: N/A
When used together with: Cisco » Nexus 3132q-xl » Version: N/A
When used together with: Cisco » Nexus 3164q » Version: N/A
When used together with: Cisco » Nexus 3172 » Version: N/A
When used together with: Cisco » Nexus 3172pq-xl » Version: N/A
When used together with: Cisco » Nexus 3172tq » Version: N/A
When used together with: Cisco » Nexus 3172tq-32t » Version: N/A
When used together with: Cisco » Nexus 3172tq-xl » Version: N/A
When used together with: Cisco » Nexus 3232c » Version: N/A
When used together with: Cisco » Nexus 3264c-e » Version: N/A
When used together with: Cisco » Nexus 3264q » Version: N/A
When used together with: Cisco » Nexus 3408-s » Version: N/A
When used together with: Cisco » Nexus 34180yc » Version: N/A
When used together with: Cisco » Nexus 3432d-s » Version: N/A
When used together with: Cisco » Nexus 3464c » Version: N/A
When used together with: Cisco » Nexus 3524 » Version: N/A
When used together with: Cisco » Nexus 3524-x » Version: N/A
When used together with: Cisco » Nexus 3524-xl » Version: N/A
When used together with: Cisco » Nexus 3548 » Version: N/A
When used together with: Cisco » Nexus 3548-x » Version: N/A
When used together with: Cisco » Nexus 3548-xl » Version: N/A
When used together with: Cisco » Nexus 36180yc-r » Version: N/A
When used together with: Cisco » Nexus 3636c-r » Version: N/A
When used together with: Cisco » Nexus 9000v » Version: N/A
When used together with: Cisco » Nexus 92160yc-x » Version: N/A
When used together with: Cisco » Nexus 92300yc » Version: N/A
When used together with: Cisco » Nexus 92304qc » Version: N/A
When used together with: Cisco » Nexus 92348gc-x » Version: N/A
When used together with: Cisco » Nexus 9236c » Version: N/A
When used together with: Cisco » Nexus 9272q » Version: N/A
When used together with: Cisco » Nexus 93108tc-ex » Version: N/A
When used together with: Cisco » Nexus 93108tc-fx » Version: N/A
When used together with: Cisco » Nexus 93120tx » Version: N/A
When used together with: Cisco » Nexus 93128tx » Version: N/A
When used together with: Cisco » Nexus 93180lc-ex » Version: N/A
When used together with: Cisco » Nexus 93180yc-ex » Version: N/A
When used together with: Cisco » Nexus 93180yc-fx » Version: N/A
When used together with: Cisco » Nexus 93216tc-fx2 » Version: N/A
When used together with: Cisco » Nexus 93240yc-fx2 » Version: N/A
When used together with: Cisco » Nexus 9332c » Version: N/A
When used together with: Cisco » Nexus 9332pq » Version: N/A
When used together with: Cisco » Nexus 93360yc-fx2 » Version: N/A
When used together with: Cisco » Nexus 9336c-fx2 » Version: N/A
When used together with: Cisco » Nexus 9336pq Aci Spine » Version: N/A
When used together with: Cisco » Nexus 9348gc-fxp » Version: N/A
When used together with: Cisco » Nexus 9364c » Version: N/A
When used together with: Cisco » Nexus 9372px » Version: N/A
When used together with: Cisco » Nexus 9372px-e » Version: N/A
When used together with: Cisco » Nexus 9372tx » Version: N/A
When used together with: Cisco » Nexus 9372tx-e » Version: N/A
When used together with: Cisco » Nexus 9396px » Version: N/A
When used together with: Cisco » Nexus 9396tx » Version: N/A
When used together with: Cisco » Nexus 9504 » Version: N/A
When used together with: Cisco » Nexus 9508 » Version: N/A
When used together with: Cisco » Nexus 9516 » Version: N/A
Cisco » Nx-os
Versions from including (>=) 14.0 and before (<) 14.2\(1j\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 9000v » Version: N/A
When used together with: Cisco » Nexus 92160yc-x » Version: N/A
When used together with: Cisco » Nexus 92300yc » Version: N/A
When used together with: Cisco » Nexus 92304qc » Version: N/A
When used together with: Cisco » Nexus 92348gc-x » Version: N/A
When used together with: Cisco » Nexus 9236c » Version: N/A
When used together with: Cisco » Nexus 9272q » Version: N/A
When used together with: Cisco » Nexus 93108tc-ex » Version: N/A
When used together with: Cisco » Nexus 93108tc-fx » Version: N/A
When used together with: Cisco » Nexus 93120tx » Version: N/A
When used together with: Cisco » Nexus 93128tx » Version: N/A
When used together with: Cisco » Nexus 93180lc-ex » Version: N/A
When used together with: Cisco » Nexus 93180yc-ex » Version: N/A
When used together with: Cisco » Nexus 93180yc-fx » Version: N/A
When used together with: Cisco » Nexus 93216tc-fx2 » Version: N/A
When used together with: Cisco » Nexus 93240yc-fx2 » Version: N/A
When used together with: Cisco » Nexus 9332c » Version: N/A
When used together with: Cisco » Nexus 9332pq » Version: N/A
When used together with: Cisco » Nexus 93360yc-fx2 » Version: N/A
When used together with: Cisco » Nexus 9336c-fx2 » Version: N/A
When used together with: Cisco » Nexus 9336pq Aci Spine » Version: N/A
When used together with: Cisco » Nexus 9348gc-fxp » Version: N/A
When used together with: Cisco » Nexus 9364c » Version: N/A
When used together with: Cisco » Nexus 9372px » Version: N/A
When used together with: Cisco » Nexus 9372px-e » Version: N/A
When used together with: Cisco » Nexus 9372tx » Version: N/A
When used together with: Cisco » Nexus 9372tx-e » Version: N/A
When used together with: Cisco » Nexus 9396px » Version: N/A
When used together with: Cisco » Nexus 9396tx » Version: N/A
When used together with: Cisco » Nexus 9504 » Version: N/A
When used together with: Cisco » Nexus 9508 » Version: N/A
When used together with: Cisco » Nexus 9516 » Version: N/A
Cisco » Nx-os
Versions from including (>=) 8.3 and before (<) 8.4\(2\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 7000 » Version: N/A
When used together with: Cisco » Nexus 7700 » Version: N/A
Cisco » Nx-os
Versions from including (>=) 5.2 and before (<) 6.2\(29\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Mds 9132t » Version: N/A
When used together with: Cisco » Mds 9148s » Version: N/A
When used together with: Cisco » Mds 9148t » Version: N/A
When used together with: Cisco » Mds 9216 » Version: N/A
When used together with: Cisco » Mds 9216a » Version: N/A
When used together with: Cisco » Mds 9216i » Version: N/A
When used together with: Cisco » Mds 9222i » Version: N/A
When used together with: Cisco » Mds 9506 » Version: N/A
When used together with: Cisco » Mds 9509 » Version: N/A
When used together with: Cisco » Mds 9513 » Version: N/A
When used together with: Cisco » Mds 9706 » Version: N/A
When used together with: Cisco » Mds 9710 » Version: N/A
When used together with: Cisco » Mds 9718 » Version: N/A
Cisco » Nx-os
Versions up to, including, (<=) 5.2
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 1000v » Version: N/A For Hyper-v
Cisco » Nx-os
Versions from including (>=) 5.2 and before (<) 5.2\(1\)sv5\(1.3\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 1000ve » Version: N/A For Vsphere
Cisco » Nx-os
Versions before (<) 5.2\(1\)sv3\(4.1b\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 1000v » Version: N/A For Vsphere
Cisco » Nx-os
Versions from including (>=) 7.3 and before (<) 8.4\(1a\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Mds 9132t » Version: N/A
When used together with: Cisco » Mds 9148s » Version: N/A
When used together with: Cisco » Mds 9148t » Version: N/A
When used together with: Cisco » Mds 9216 » Version: N/A
When used together with: Cisco » Mds 9216a » Version: N/A
When used together with: Cisco » Mds 9216i » Version: N/A
When used together with: Cisco » Mds 9222i » Version: N/A
When used together with: Cisco » Mds 9506 » Version: N/A
When used together with: Cisco » Mds 9509 » Version: N/A
When used together with: Cisco » Mds 9513 » Version: N/A
When used together with: Cisco » Mds 9706 » Version: N/A
When used together with: Cisco » Mds 9710 » Version: N/A
When used together with: Cisco » Mds 9718 » Version: N/A
Cisco » Firepower Extensible Operating System
Versions up to, including, (<=) 2.3.1.173
cpe:2.3:o:cisco:firepower_extensible_operating_system:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Firepower 4110 » Version: N/A
When used together with: Cisco » Firepower 4115 » Version: N/A
When used together with: Cisco » Firepower 4120 » Version: N/A
When used together with: Cisco » Firepower 4125 » Version: N/A
When used together with: Cisco » Firepower 4140 » Version: N/A
When used together with: Cisco » Firepower 4145 » Version: N/A
When used together with: Cisco » Firepower 4150 » Version: N/A
When used together with: Cisco » Firepower 9300 » Version: N/A
Cisco » Firepower Extensible Operating System
Versions from including (>=) 2.7 and before (<) 2.7.1.106
cpe:2.3:o:cisco:firepower_extensible_operating_system:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Firepower 4110 » Version: N/A
When used together with: Cisco » Firepower 4115 » Version: N/A
When used together with: Cisco » Firepower 4120 » Version: N/A
When used together with: Cisco » Firepower 4125 » Version: N/A
When used together with: Cisco » Firepower 4140 » Version: N/A
When used together with: Cisco » Firepower 4145 » Version: N/A
When used together with: Cisco » Firepower 4150 » Version: N/A
When used together with: Cisco » Firepower 9300 » Version: N/A
Cisco » Firepower Extensible Operating System
Versions from including (>=) 2.6 and before (<) 2.6.1.187
cpe:2.3:o:cisco:firepower_extensible_operating_system:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Firepower 4110 » Version: N/A
When used together with: Cisco » Firepower 4115 » Version: N/A
When used together with: Cisco » Firepower 4120 » Version: N/A
When used together with: Cisco » Firepower 4125 » Version: N/A
When used together with: Cisco » Firepower 4140 » Version: N/A
When used together with: Cisco » Firepower 4145 » Version: N/A
When used together with: Cisco » Firepower 4150 » Version: N/A
When used together with: Cisco » Firepower 9300 » Version: N/A
Cisco » Fxos » Version: 2.4
cpe:2.3:o:cisco:fxos:2.4:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Firepower 4110 » Version: N/A
When used together with: Cisco » Firepower 4115 » Version: N/A
When used together with: Cisco » Firepower 4120 » Version: N/A
When used together with: Cisco » Firepower 4125 » Version: N/A
When used together with: Cisco » Firepower 4140 » Version: N/A
When used together with: Cisco » Firepower 4145 » Version: N/A
When used together with: Cisco » Firepower 4150 » Version: N/A
When used together with: Cisco » Firepower 9300 » Version: N/A
Cisco » Ucs Manager
Versions from including (>=) 4.0 and before (<) 4.0\(4g\)
cpe:2.3:a:cisco:ucs_manager:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Ucs 6248up » Version: N/A
When used together with: Cisco » Ucs 6296up » Version: N/A
When used together with: Cisco » Ucs 6300 » Version: N/A
When used together with: Cisco » Ucs 6324 » Version: N/A
When used together with: Cisco » Ucs 64108 » Version: N/A
When used together with: Cisco » Ucs 6454 » Version: N/A
Cisco » Ucs Manager
Versions before (<) 3.2\(3m\)
cpe:2.3:a:cisco:ucs_manager:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Ucs 6248up » Version: N/A
When used together with: Cisco » Ucs 6296up » Version: N/A
When used together with: Cisco » Ucs 6300 » Version: N/A
When used together with: Cisco » Ucs 6324 » Version: N/A
When used together with: Cisco » Ucs 64108 » Version: N/A
When used together with: Cisco » Ucs 6454 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2020-3120

EPSS FAQ

0.07%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 27 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-3120

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.1	MEDIUM	AV:A/AC:L/Au:N/C:N/I:N/A:C	6.5	6.9	NIST
Access Vector: Adjacent Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Complete
7.4	HIGH	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H	2.8	4.0	Cisco Systems, Inc.
Attack Vector: Adjacent Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Changed Confidentiality: None Integrity: None Availability: High
6.5	MEDIUM	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	2.8	3.6	NIST
Attack Vector: Adjacent Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2020-3120

CWE-190 Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
Assigned by:
- nvd@nist.gov (Primary)
- ykramarz@cisco.com (Secondary)

References for CVE-2020-3120

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-fxnxos-iosxr-cdp-dos

Cisco FXOS, IOS XR, and NX-OS Software Cisco Discovery Protocol Denial of Service Vulnerability
Vendor Advisory
http://packetstormsecurity.com/files/156203/Cisco-Discovery-Protocol-CDP-Remote-Device-Takeover.html

Cisco Discovery Protocol (CDP) Remote Device Takeover ≈ Packet Storm
Third Party Advisory;VDB Entry

CVEs referencing this url

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Vulnerability Details : CVE-2020-3120

Products affected by CVE-2020-3120

Exploit prediction scoring system (EPSS) score for CVE-2020-3120

CVSS scores for CVE-2020-3120

CWE ids for CVE-2020-3120

References for CVE-2020-3120