CVE-2025-12259 – TOTOLINK A3300R POST Parameter cstecgi.cgi setScheduleCfg stack-based overflow

CVE ID : CVE-2025-12259

Published : Oct. 27, 2025, 10:15 a.m. | 29 minutes ago

Description : A flaw has been found in TOTOLINK A3300R 17.0.0cu.557_B20221024. The affected element is the function setScheduleCfg of the file /cgi-bin/cstecgi.cgi of the component POST Parameter Handler. This manipulation of the argument recHour causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been published and may be used.

Severity: 9.0 | HIGH

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