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.
                
            References
                    | Link | Resource | 
|---|---|
| https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setOpModeCfg.md | Exploit Third Party Advisory | 
| https://vuldb.com/?ctiid.329929 | Permissions Required | 
| https://vuldb.com/?id.329929 | Third Party Advisory VDB Entry | 
| https://vuldb.com/?submit.673725 | Third Party Advisory VDB Entry | 
| https://www.totolink.net/ | Product | 
Configurations
                    Configuration 1 (hide)
| AND | 
 
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History
                    28 Oct 2025, 02:10
| Type | Values Removed | Values Added | 
|---|---|---|
| References | () https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setOpModeCfg.md - Exploit, Third Party Advisory | |
| References | () https://vuldb.com/?ctiid.329929 - Permissions Required | |
| References | () https://vuldb.com/?id.329929 - Third Party Advisory, VDB Entry | |
| References | () https://vuldb.com/?submit.673725 - Third Party Advisory, VDB Entry | |
| References | () https://www.totolink.net/ - Product | |
| CPE | cpe:2.3:h:totolink:a3300r:-:*:*:*:*:*:*:* cpe:2.3:o:totolink:a3300r_firmware:17.0.0cu.557_b20221024:*:*:*:*:*:*:* | |
| First Time | Totolink Totolink a3300r Firmware Totolink a3300r | 
27 Oct 2025, 10:15
| Type | Values Removed | Values Added | 
|---|---|---|
| New CVE | 
Information
                Published : 2025-10-27 10:15
Updated : 2025-10-28 02:10
NVD link : CVE-2025-12258
Mitre link : CVE-2025-12258
CVE.ORG link : CVE-2025-12258
JSON object : View
Products Affected
                totolink
- a3300r_firmware
- a3300r
