CVE-2021-34982
high-risk
Published 2024-05-07
NETGEAR Multiple Routers httpd Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of multiple NETGEAR routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. When parsing the strings file, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-13709.
Do I need to act?
~
5.6% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10
High
ADJACENT_NETWORK
/ LOW complexity
Affected Products (20)
Mr80 Firmware
Ms80 Firmware
Lax20 Firmware
Affected Vendors
References (4)
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1274/
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1274/
61
/ 100
high-risk
Severity
27/34 · High
Exploitability
8/34 · Low
Exposure
26/34 · High