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Critical severity · published Aug 11, 2021
CVE-2021-38530
Certain NETGEAR devices are affected by command injection by an unauthenticated attacker
9.8
CVSS
2.2%
EPSS
No
On KEV
Description
Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects RBK40 before 2.5.1.16, RBR40 before 2.5.1.16, RBS40 before 2.5.1.16, RBK20 before 2.5.1.16, RBR20 before 2.5.1.16, RBS20 before 2.5.1.16, RBK50 before 2.5.1.16, RBR50 before 2.5.1.16, RBS50 before 2.5.1.16, and RBS50Y before 2.6.1.40.
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)2.2% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RF
Rbk20 Firmware · Netgear
before 2.5.1.16 · source: NVD
RF
Rbk40 Firmware · Netgear
before 2.5.1.16 · source: NVD
RF
Rbk50 Firmware · Netgear
before 2.5.1.16 · source: NVD
RF
Rbr20 Firmware · Netgear
before 2.5.1.16 · source: NVD
RF
Rbr40 Firmware · Netgear
before 2.5.1.16 · source: NVD
RF
Rbr50 Firmware · Netgear
before 2.5.1.16 · source: NVD
RF
Rbs20 Firmware · Netgear
before 2.5.1.16 · source: NVD
RF
Rbs40 Firmware · Netgear
before 2.5.1.16 · source: NVD
RF
Rbs50 Firmware · Netgear
before 2.5.1.16 · source: NVD
RF
Rbs50y Firmware · Netgear
before 2.6.1.40 · source: NVD
Affected product
RF
Rbk20 Firmware
Netgear
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-38530
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-38530
Vendor Advisory
https://kb.netgear.com/000063770/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-WiFi-Systems-PSV-2019-0151
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