CVE-2020-3465 : A vulnerability in Cisco IOS XE Software could allow an unauthenticated, adjacen

A vulnerability in Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a device to reload. The vulnerability is due to incorrect handling of certain valid, but not typical, Ethernet frames. An attacker could exploit this vulnerability by sending the Ethernet frames onto the Ethernet segment. A successful exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition.

Published 2020-09-24 18:15:20

Updated 2023-05-22 18:57:25

Source Cisco Systems, Inc.

View at NVD, CVE.org

Vulnerability category: Input validationDenial of service

Products affected by CVE-2020-3465

Cisco » Ios Xe » Version: 17.4.1
cpe:2.3:o:cisco:ios_xe:17.4.1:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1100-4p » Version: N/A
When used together with: Cisco » 1100-8p » Version: N/A
When used together with: Cisco » 1100 Terminal Services Gateways » Version: N/A
When used together with: Cisco » 1101-4p » Version: N/A
When used together with: Cisco » 1109-2p » Version: N/A
When used together with: Cisco » 1109-4p » Version: N/A
When used together with: Cisco » 1111x-8p » Version: N/A
When used together with: Cisco » 4221 Integrated Services Router » Version: N/A
When used together with: Cisco » 4331 Integrated Services Router » Version: N/A
When used together with: Cisco » 4431 Integrated Services Router » Version: N/A
When used together with: Cisco » 4461 Integrated Services Router » Version: N/A
When used together with: Cisco » 9800-cl » Version: N/A
When used together with: Cisco » 9800-l » Version: N/A
When used together with: Cisco » Csr 1000v » Version: N/A
When used together with: Cisco » Esr6300 » Version: N/A
When used together with: Cisco » Ir 1101 » Version: N/A
When used together with: Cisco » Isrv » Version: N/A
When used together with: Cisco » Vg400 » Version: N/A
Cisco » Ios Xe » Version: 16.6.9
cpe:2.3:o:cisco:ios_xe:16.6.9:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1100-4p » Version: N/A
When used together with: Cisco » 1100-8p » Version: N/A
When used together with: Cisco » 1100 Terminal Services Gateways » Version: N/A
When used together with: Cisco » 1101-4p » Version: N/A
When used together with: Cisco » 1109-2p » Version: N/A
When used together with: Cisco » 1109-4p » Version: N/A
When used together with: Cisco » 1111x-8p » Version: N/A
When used together with: Cisco » 4221 Integrated Services Router » Version: N/A
When used together with: Cisco » 4331 Integrated Services Router » Version: N/A
When used together with: Cisco » 4431 Integrated Services Router » Version: N/A
When used together with: Cisco » 4461 Integrated Services Router » Version: N/A
When used together with: Cisco » 9800-cl » Version: N/A
When used together with: Cisco » 9800-l » Version: N/A
When used together with: Cisco » Csr 1000v » Version: N/A
When used together with: Cisco » Esr6300 » Version: N/A
When used together with: Cisco » Ir 1101 » Version: N/A
When used together with: Cisco » Isrv » Version: N/A
When used together with: Cisco » Vg400 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2020-3465

EPSS FAQ

0.06%

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

~ 23 %

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

CVSS scores for CVE-2020-3465

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-2020-3465

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Assigned by: ykramarz@cisco.com (Secondary)

References for CVE-2020-3465

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-le-drTOB625

Cisco IOS XE Software Ethernet Frame Denial of Service Vulnerability
Vendor Advisory

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Vulnerability Details : CVE-2020-3465

Products affected by CVE-2020-3465

Exploit prediction scoring system (EPSS) score for CVE-2020-3465

CVSS scores for CVE-2020-3465

CWE ids for CVE-2020-3465

References for CVE-2020-3465