Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2025-12258

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.

Published

2025-10-27T10:15:38.417

Last Modified

2025-10-28T02:10:41.893

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 8.8 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: SINGLE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

8.0

Impact Score

10.0

Weaknesses

Type: Primary
CWE-119
CWE-121

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	totolink	a3300r_firmware	17.0.0cu.557_b20221024	Yes
Hardware	totolink	a3300r	-	No

References

https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setOpModeCfg.md Exploit, Third Party Advisory ([email protected])
https://vuldb.com/?ctiid.329929 Permissions Required ([email protected])
https://vuldb.com/?id.329929 Third Party Advisory, VDB Entry ([email protected])
https://vuldb.com/?submit.673725 Third Party Advisory, VDB Entry ([email protected])
https://www.totolink.net/ Product ([email protected])