CVE-2026-121600

CRITICAL 9.9CVE-2026-121600 · Published 04/11/2026 · updated 04/11/2026

In short

CVE-2026-121600 is a CRITICAL (CVSS 9.9) vulnerability.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
—	No affected product versions are listed for this vulnerability yet.

Description

A flaw has been found in TOTOLINK A950RG 4.1.2cu.5268_B20221104. Affected by this vulnerability is the function setMacFilterRules of the file /cgi-bin/cstecgi.cgi of the component MAC Filter Handler. This manipulation of the argument addEffect causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been published and may be used.

References

gist.github.com/H3rmesk1t/217c00b12e04fcde07c453a55579f808
vuldb.com/cve/CVE-2026-121600
vuldb.com/submit/1022562
vuldb.com/vuln/430442
vuldb.com/vuln/430442/cti
totolink.net

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