TOTOLINK A950RG Device-Information CGI infostat.cgi sub_402340 stack-based overflow

Summary

A security flaw has been discovered in TOTOLINK A950RG 4.1.2cu.5268_B20221104. Affected by this issue is the function sub_402340 of the file infostat.cgi of the component Device-Information CGI. Performing a manipulation of the argument CONTENT_LENGTH results in stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks.

Remediation

1. Inventory every TOTOLINK A950RG deployment, including staging.
2. No fixed version appears in the public sources yet. Check the references below and the vendor directly.

References

• Advisoryhttps://vuldb.com/cve/CVE-2026-116508
• Advisoryhttps://vuldb.com/submit/1022557
• Referencehttps://gist.github.com/H3rmesk1t/ad72def4ccc232757d4cbabf45da72cb
• Referencehttps://vuldb.com/vuln/426406
• Referencehttps://vuldb.com/vuln/426406/cti
• Referencehttps://www.totolink.net/