CVE-2022-43973
Arbitrary code execution in Linksys WRT54GL
- Published
- Jan 9, 2023
- Updated
- Apr 9, 2025
- Assigning CNA
- trellix
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 77.9%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
An arbitrary code execution vulnerability exisits in Linksys WRT54GL Wireless-G Broadband Router with firmware <= 4.30.18.006. The Check_TSSI function within the httpd binary uses unvalidated user input in the construction of a system command. An authenticated attacker with administrator privileges can leverage this vulnerability over the network via a malicious POST request to /apply.cgi to execute arbitrary commands on the underlying Linux operating system as root.
Sources
1- Linksys-WRT54GL-ExploitationExploit
From Solder to Shell: Full Hardware Exploitation of the Linksys WRT54GL Router (CVE-2022-43973)
Responsible use
Use vulnerability information only on systems you own or are authorized to test. Kitploit links to public research metadata and does not store exploit code or malicious payloads.