Critical severity · published Dec 26, 2021
CVE-2021-45623
Certain NETGEAR devices are affected by command injection by an unauthenticated attacker
9.8
CVSS
1.7%
EPSS
No
On KEV
Description
Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects R7800 before 1.0.2.74, R9000 before 1.0.5.2, and XR500 before 2.3.2.66.
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)1.7% · higher than 77% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RF
R7800 Firmware · Netgear
before 1.0.2.74 · source: NVD
RF
R9000 Firmware · Netgear
before 1.0.5.2 · source: NVD
XF
Xr500 Firmware · Netgear
before 2.3.2.66 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-45623
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-45623
Patch
https://kb.netgear.com/000064449/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Routers-PSV-2019-0203
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