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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.193 (97.3th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.193 · newest: 0.193 · change: 0.000
Affected products
Weakness classification (CWE)
References
- youtu.be/73-1lhvJPNg (Exploit, Third Party Advisory)
- youtu.be/TeWAmZaKQ_w (Exploit, Third Party Advisory)
- youtu.be/RfWVYCUBNZ0 (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.