CVE-2025-12258

HIGH 8.8

TOTOLINK A3300R POST Parameter cstecgi.cg setOpModeCfg stack-based overflow

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability was detected in TOTOLINK A3300R 17.0.0cu.557_B20221024. Impacted is the function setOpModeCfg of the file /cgi-bin/cstecgi.cg of the component POST Parameter Handler. The manipulation of the argument opmode results in stack-based buffer overflow. The attack may be performed from remote.

CWE	CWE-121 CWE-119
Vendor	totolink
Product	a3300r
Published	Oct 27, 2025
Last Updated	Feb 24, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

TOTOLINK / A3300R

17.0.0cu.557_B20221024

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/?id.329929 vuldb.com: https://vuldb.com/?ctiid.329929 vuldb.com: https://vuldb.com/?submit.673725 github.com: https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setOpModeCfg.md totolink.net: https://www.totolink.net/

Credits

🔍 wxhwxhwxh_ (VulDB User)