CVE-2022-43970

HIGH

Linksys WRT54GL <=4.30.18.006 - Buffer Overflow

Title source: llm
STIX 2.1

Description

A buffer overflow vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware <= 4.30.18.006. A stack-based buffer overflow in the Start_EPI function within the httpd binary allows an authenticated attacker with administrator privileges to execute arbitrary commands on the underlying Linux operating system as root. This vulnerablity can be triggered over the network via a malicious POST request to /apply.cgi.

References (3)

Core 3
Core References
Exploit, Third Party Advisory
https://youtu.be/73-1lhvJPNg
Exploit, Third Party Advisory
https://youtu.be/RfWVYCUBNZ0
Exploit, Third Party Advisory
https://youtu.be/TeWAmZaKQ_w

Scores

CVSS v3 7.2
EPSS 0.0402
EPSS Percentile 88.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-120 CWE-787
Status published
Products (1)
linksys/wrt54gl_firmware < 4.30.18.006
Published Jan 09, 2023
Tracked Since Feb 18, 2026