CVE-2019-20751 : Certain NETGEAR devices are affected by a stack-based buffer overflow by an auth

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6100 before 1.0.0.60, DM200 before 1.0.0.61, EX2700 before 1.0.1.48, EX6100v2 before 1.0.1.76, EX6150v2 before 1.0.1.76, EX6200v2 before 1.0.1.72, EX8000 before 1.0.1.180, R7800 before 1.0.2.52, R8900 before 1.0.4.26, R9000 before 1.0.4.26, WN2000RPTv3 before 1.0.1.32, WN3000RPv2 before 1.0.0.68, WN3000RPv3 before 1.0.2.70, WN3100RPv2 before 1.0.0.66, WNDR4300v2 before 1.0.0.58, WNDR4500v3 before 1.0.0.58, and WNR2000v5 before 1.0.0.68.

Published 2020-04-16 21:15:13

Updated 2020-04-21 19:31:17

Source MITRE

View at NVD, CVE.org

Vulnerability category: OverflowMemory Corruption

Products affected by CVE-2019-20751

Netgear » Wndr4500 Firmware
Versions before (<) 1.0.0.58
cpe:2.3:o:netgear:wndr4500_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Wndr4500 » Version: V3
Netgear » Wnr2000 Firmware
Versions before (<) 1.0.0.68
cpe:2.3:o:netgear:wnr2000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Wnr2000 » Version: V5
Netgear » D6100 Firmware
Versions before (<) 1.0.0.60
cpe:2.3:o:netgear:d6100_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » D6100 » Version: N/A
Netgear » Wndr4300 Firmware
Versions before (<) 1.0.0.58
cpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Wndr4300 » Version: V2
Netgear » Ex6150 Firmware
Versions before (<) 1.0.1.76
cpe:2.3:o:netgear:ex6150_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex6150 » Version: V2
Netgear » Ex6100 Firmware
Versions before (<) 1.0.1.76
cpe:2.3:o:netgear:ex6100_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex6100 » Version: V2
Netgear » Ex6200 Firmware
Versions before (<) 1.0.1.72
cpe:2.3:o:netgear:ex6200_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex6200 » Version: V2
Netgear » R7800 Firmware
Versions before (<) 1.0.2.52
cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R7800 » Version: N/A
Netgear » R9000 Firmware
Versions before (<) 1.0.4.26
cpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R9000 » Version: N/A
Netgear » Wn3000rp Firmware
Versions before (<) 1.0.0.68
cpe:2.3:o:netgear:wn3000rp_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Wn3000rp » Version: V2
Netgear » Wn3000rp Firmware
Versions before (<) 1.0.2.70
cpe:2.3:o:netgear:wn3000rp_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Wn3000rp » Version: V3
Netgear » Wn3100rp Firmware
Versions before (<) 1.0.0.66
cpe:2.3:o:netgear:wn3100rp_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Wn3100rp » Version: V2
Netgear » Ex2700 Firmware
Versions before (<) 1.0.1.48
cpe:2.3:o:netgear:ex2700_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex2700 » Version: N/A
Netgear » Ex8000 Firmware
Versions before (<) 1.0.1.180
cpe:2.3:o:netgear:ex8000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex8000 » Version: N/A
Netgear » Wn2000rpt Firmware
Versions before (<) 1.0.1.32
cpe:2.3:o:netgear:wn2000rpt_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Wn2000rpt » Version: V3
Netgear » R8900 Firmware
Versions before (<) 1.0.4.26
cpe:2.3:o:netgear:r8900_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R8900 » Version: N/A
Netgear » Dm200 Firmware
Versions before (<) 1.0.0.61
cpe:2.3:o:netgear:dm200_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Dm200 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2019-20751

EPSS FAQ

0.04%

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

~ 10 %

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

CVSS scores for CVE-2019-20751

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.2	MEDIUM	AV:A/AC:L/Au:S/C:P/I:P/A:P	5.1	6.4	NIST
Access Vector: Adjacent Network Access Complexity: Low Authentication: Single Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
6.8	MEDIUM	CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	0.9	5.9	MITRE
Attack Vector: Adjacent Network Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
6.8	MEDIUM	CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	0.9	5.9	NIST
Attack Vector: Adjacent Network Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2019-20751

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2019-20751

https://kb.netgear.com/000060964/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Extenders-Gateways-and-Routers-PSV-2018-0171

Security Advisory for Post-Authentication Stack Overflow on Some Extenders, Gateways, and Routers, PSV-2018-0171 | Answer | NETGEAR Support
Vendor Advisory

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Vulnerability Details : CVE-2019-20751

Products affected by CVE-2019-20751

Exploit prediction scoring system (EPSS) score for CVE-2019-20751

CVSS scores for CVE-2019-20751

CWE ids for CVE-2019-20751

References for CVE-2019-20751