CVE-2025-12241

A vulnerability was detected in TOTOLINK A3300R 17.0.0cu.557_B20221024. This impacts the function setLanguageCfg of the file /cgi-bin/cstecgi.cgi of the component POST Parameter Handler. The manipulation of the argument lang results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit is now public and may be used.
References
Link Resource
https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setLanguageCfg.md Exploit Third Party Advisory
https://vuldb.com/?ctiid.329911 Permissions Required VDB Entry
https://vuldb.com/?id.329911 Third Party Advisory VDB Entry
https://vuldb.com/?submit.673723 Third Party Advisory VDB Entry
https://www.totolink.net/ Product
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:totolink:a3300r_firmware:17.0.0cu.557_b20221024:*:*:*:*:*:*:*
cpe:2.3:h:totolink:a3300r:-:*:*:*:*:*:*:*

History

28 Oct 2025, 02:16

Type Values Removed Values Added
First Time Totolink
Totolink a3300r Firmware
Totolink a3300r
References () https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setLanguageCfg.md - () https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setLanguageCfg.md - Exploit, Third Party Advisory
References () https://vuldb.com/?ctiid.329911 - () https://vuldb.com/?ctiid.329911 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.329911 - () https://vuldb.com/?id.329911 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.673723 - () https://vuldb.com/?submit.673723 - Third Party Advisory, VDB Entry
References () https://www.totolink.net/ - () https://www.totolink.net/ - Product
CPE cpe:2.3:h:totolink:a3300r:-:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a3300r_firmware:17.0.0cu.557_b20221024:*:*:*:*:*:*:*

27 Oct 2025, 07:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-10-27 07:15

Updated : 2025-10-28 02:16


NVD link : CVE-2025-12241

Mitre link : CVE-2025-12241

CVE.ORG link : CVE-2025-12241


JSON object : View

Products Affected

totolink

  • a3300r_firmware
  • a3300r
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-121

Stack-based Buffer Overflow