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High severity · published Dec 26, 2021
CVE-2021-45526
Certain NETGEAR devices are affected by a buffer overflow by an authenticated user
8.8
CVSS
0.5%
EPSS
No
On KEV
Description
Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects EX6000 before 1.0.0.38, EX6120 before 1.0.0.48, EX6130 before 1.0.0.30, R6300v2 before 1.0.4.52, R6400 before 1.0.1.52, R7000 before 1.0.11.126, R7900 before 1.0.4.30, R8000 before 1.0.4.52, R7000P before 1.3.2.124, R8000P before 1.4.1.50, RAX80 before 1.0.3.88, R6900P before 1.3.2.124, R7900P before 1.4.1.50, and RAX75 before 1.0.3.88.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EF
Ex6000 Firmware · Netgear
before 1.0.0.38 · source: NVD
EF
Ex6120 Firmware · Netgear
before 1.0.0.48 · source: NVD
EF
Ex6130 Firmware · Netgear
before 1.0.0.30 · source: NVD
RF
R6300v2 Firmware · Netgear
before 1.0.4.52 · source: NVD
RF
R6400 Firmware · Netgear
before 1.0.1.52 · source: NVD
RF
R6900p Firmware · Netgear
before 1.3.2.124 · source: NVD
RF
R7000 Firmware · Netgear
before 1.0.11.126 · source: NVD
RF
R7000p Firmware · Netgear
before 1.3.2.124 · source: NVD
RF
R7900 Firmware · Netgear
before 1.0.4.30 · source: NVD
RF
R7900p Firmware · Netgear
before 1.4.1.50 · source: NVD
RF
R8000 Firmware · Netgear
before 1.0.4.52 · source: NVD
RF
R8000p Firmware · Netgear
before 1.4.1.50 · source: NVD
Affected product
EF
Ex6000 Firmware
Netgear
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-45526
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-45526
Patch
https://kb.netgear.com/000064446/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-Some-Routers-and-Extenders-PSV-2019-0078
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