CVE-2025-12241

A vulnerability was detected in TOTOLINK A3300R 17.0.0cu.557_B20221024. This impacts the function setLanguageCfg of the file /cgi-bin/cstecgi.cgi of the component POST Parameter Handler. The manipulation of the argument lang results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit is now public and may be used.

Score

CVSS 3.1 8.8 High

Status

Analyzed - cna@vuldb.com

Published

2025-10-27

Last modified

2026-10-08

Weaknesses

CWE-119, CWE-121

Affected products

• A3300r (Totolink)
• A3300r Firmware (Totolink)

References

• https://vuldb.com/?id.329911
• https://vuldb.com/?ctiid.329911
• https://vuldb.com/?submit.673723
• https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setLanguageCfg.md
• https://www.totolink.net/