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Critical severity · published Dec 26, 2021
CVE-2021-45637
Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker
9.8
CVSS
1.2%
EPSS
No
On KEV
Description
Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects R6260 before 1.1.0.76, R6800 before 1.2.0.62, R6700v2 before 1.2.0.62, R6900v2 before 1.2.0.62, R7450 before 1.2.0.62, AC2100 before 1.2.0.62, AC2400 before 1.2.0.62, and AC2600 before 1.2.0.62.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 69% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AF
Ac2100 Firmware · Netgear
before 1.2.0.62 · source: NVD
AF
Ac2400 Firmware · Netgear
before 1.2.0.62 · source: NVD
AF
Ac2600 Firmware · Netgear
before 1.2.0.62 · source: NVD
RF
R6260 Firmware · Netgear
before 1.1.0.76 · source: NVD
RF
R6700v2 Firmware · Netgear
before 1.2.0.62 · source: NVD
RF
R6800 Firmware · Netgear
before 1.2.0.62 · source: NVD
RF
R6900v2 Firmware · Netgear
before 1.2.0.62 · source: NVD
RF
R7450 Firmware · Netgear
before 1.2.0.62 · source: NVD
Affected product
AF
Ac2100 Firmware
Netgear
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-45637
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-45637
Patch
https://kb.netgear.com/000064059/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-PSV-2019-0081
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