CVE-2026-121600
TOTOLINK A950RG MAC Filter cstecgi.cgi setMacFilterRules stack-based overflow
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| A950RG TOTOLINK |
4.1.2cu.5268_B20221104 (affected) | CNA: VulDB |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 9.4 critical |
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 | CNA: VulDB |
| 3.1 / 9.9 critical |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R | CNA: VulDB |
| 3.0 / 9.9 critical |
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R | CNA: VulDB |
| 2.0 / 9.0 critical |
AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | CNA: VulDB |
Exploit evidence
- https://gist.github.com/H3rmesk1t/217c00b12e04fcde07c453a55579f808
exploit · CNA: VulDB
References
- https://vuldb.com/vuln/430442CNA: VulDB · vdb-entry, technical-description
- https://vuldb.com/vuln/430442/ctiCNA: VulDB · signature, permissions-required
- https://vuldb.com/cve/CVE-2026-121600CNA: VulDB · third-party-advisory
- https://vuldb.com/submit/1022562CNA: VulDB · third-party-advisory
- https://gist.github.com/H3rmesk1t/217c00b12e04fcde07c453a55579f808CNA: VulDB · exploit
- https://www.totolink.net/CNA: VulDB · product
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