CVE-2025-12260: TOTOLINK A3300R POST Parameter cstecgi.cgi setSyslogCfg stack-based overflow

Published Oct 27, 2025
·
Updated

A vulnerability has been found in TOTOLINK A3300R 17.0.0cu.557B20221024. 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.

Affected Software

3 affected components
TOTOLINK A3300R
All of the following
TOTOLINK A3300R firmware=17.0.0cu.557_b20221024
TOTOLINK A3300R

Event History

Oct 27, 2025
CVE Published
via MITRE·10:02 AM
Data Sourced
via MITRE·10:02 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·10:15 AM
DescriptionSeverityWeaknessAffected Software
Jan 17, 58277
Event
via NVD·05:41 PM
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Frequently Asked Questions

1

What is the severity of CVE-2025-12260?

CVE-2025-12260 has not yet been assigned a CVSS score, but it is considered a critical vulnerability due to the potential for remote exploitation via stack-based buffer overflow.

2

How do I fix CVE-2025-12260?

To remediate CVE-2025-12260, users should update the TOTOLINK A3300R firmware to a version that addresses the buffer overflow vulnerability.

3

What are the potential exploits of CVE-2025-12260?

Exploitation of CVE-2025-12260 could allow an attacker to execute arbitrary code on the affected device, leading to full system compromise.

4

Which devices are affected by CVE-2025-12260?

CVE-2025-12260 specifically affects the TOTOLINK A3300R router running firmware version 17.0.0cu.557_B20221024.

5

Is there a workaround for CVE-2025-12260?

Currently, there are no documented workarounds for CVE-2025-12260, and updating the firmware is the recommended course of action.

Contact

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