Description
A weakness has been identified in TOTOLINK A800R 4.1.2cu.5137_B20200730. This affects the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi of the component product.so. This manipulation of the argument File causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| TOTOLINK | A800R | 4.1.2cu.5137_B20200730 | — |
References
- VDB-389948 | TOTOLINK A800R product.so cstecgi.cgi UploadCustomModule stack-based overflow vdb-entry technical-description
- VDB-389948 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- CVE-2026-19812 | CVE Analysis and Report third-party-advisory
- Submit #869428 | Totolink A800R V4.1.2cu.5137_B20200730 Buffer Overflow third-party-advisory
- https://github.com/panda666-888/vuls/blob/main/totolink/a800r/UploadCustomModule.md exploit
- https://www.totolink.net/ product