Description
A vulnerability was detected in TOTOLINK A800R 4.1.2cu.5137_B20200730. Affected is the function setMacQos of the file /cgi-bin/cstecgi.cgi of the component firewall.so. Performing a manipulation of the argument macAddress results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is now public and may be used.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| TOTOLINK | A800R | 4.1.2cu.5137_B20200730 | — |
References
- VDB-389950 | TOTOLINK A800R firewall.so cstecgi.cgi setMacQos stack-based overflow vdb-entry technical-description
- VDB-389950 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- CVE-2026-19814 | CVE Analysis and Report third-party-advisory
- Submit #869431 | Totolink A800R V4.1.2cu.5137_B20200730 Buffer Overflow third-party-advisory
- https://github.com/panda666-888/vuls/blob/main/totolink/a800r/setMacQos.md exploit
- https://www.totolink.net/ product