QwikSec

Security Database

CVE

CWE

Training

CVE-2025-12259

Published: Oct 27, 2025

Modified: Feb 24, 2026

PUBLISHED

CVSS v3.1

8.8

HIGH

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.

Vendor	Product	Versions
TOTOLINK	A3300R	affected `17.0.0cu.557_B20221024`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

VDB-329930 | TOTOLINK A3300R POST Parameter cstecgi.cgi setScheduleCfg stack-based overflow

vdb-entry

technical-description

VDB-329930 | CTI Indicators (IOB, IOC, IOA)

signature

permissions-required

Submit #673726 | TOTOLINK A3300R V17.0.0cu.557_B20221024 Buffer Overflow

third-party-advisory

https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setScheduleCfg.md

exploit

https://www.totolink.net/

product

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.