CVE-2025-12240

CriticalCVSS 9.8/10Last modified Oct 8, 2026

Description

A security vulnerability has been detected in TOTOLINK A3300R 17.0.0cu.557_B20221024. This affects the function setDmzCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ip leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Oct 27, 2025
Last modified
Oct 8, 2026
NVD status
Analyzed

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CVE-2025-12240: Critical severity, CVSS 9.8 | Vulnix