CVE-2025-12260: A vulnerability has been found in TOTOLINK A3300R 17.0.0cu.557_B20221024. The impacted element is the function…

CVE-2025-12260 · Severity: high · CVSS 8.8 · Published 2025-10-27

A vulnerability has been found in TOTOLINK A3300R 17.0.0cu.557_B20221024. The impacted element is the function setSyslogCfg of the file /cgi-bin/cstecgi.cgi of the component POST Parameter Handler. Such manipulation of the argument enable leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Technologies: TOTOLINK A3300R, TOTOLINK A3300r Firmware. Vendors: TOTOLINK.

Quick answers

Is CVE-2025-12260 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-12260 being exploited in the wild.
How severe is CVE-2025-12260?
High severity, with a CVSS score of 8.8, published 27 October 2025.
Which products and versions are affected?
TOTOLINK A3300R, TOTOLINK A3300r Firmware. The advisory does not name versions.
Is there a fix for CVE-2025-12260?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-12260?
Check whether you run TOTOLINK A3300R or TOTOLINK A3300r Firmware. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • TOTOLINK A3300R
  • TOTOLINK A3300r Firmware

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.