Critical 9.9

A flaw has been found in TOTOLINK A950RG 4.1.2cu.5268_B20221104. Affected by this vulnerability...

CVE-2026-121600 First seen on SecPulse Nov 4, 09:45

Original description The description as published by the source.

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.

Source: CVE.org (CVE Program・cvelistV5) NVD GitHub Advisory

References

Key facts

CVSS v3: Critical 9.9; CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4: High 8.6; CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
Published: Nov 4, 2026
First seen on SecPulse: Nov 4, 09:45
GHSA: GHSA-3qmv-h4hw-rjxv
CWE: CWE-119

NVD GitHub Advisory

Tags(click for explanation)

CWE

CWE-121 CWE-119

All

Totolink A950Rg

Detection sources

NIST National Vulnerability DatabaseNov 4, 10:17
GitHub Security Advisories (Global)Nov 4, 12:32
CVE.org (CVE Program・cvelistV5)Nov 4, 09:45