Buffer overflow in Linksys Wrt54gl
CVE-2022-43970
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.
Vulnerability class: Buffer Overflow
EPSS: 0.193 (97.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
References
- trellixpsirt@trellix.com (Exploit, Third Party Advisory)
- trellixpsirt@trellix.com (Exploit, Third Party Advisory)
- trellixpsirt@trellix.com (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-43970?
- CVE-2022-43970 is a high-severity vulnerability in Linksys Wrt54gl, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.2/10. Published 2023-01-09.
- How severe is CVE-2022-43970?
- High severity. CVSS v3 base score is 7.2 out of 10.