CVE-2026-123960 TOTOLINK CA300-PoE cstecgi.cgi setWanConfig buffer overflow
CriticalCVSS 9.4
- Published
- Updated
- Exploit status
- No public exploit known
Description
A weakness has been identified in TOTOLINK CA300-PoE 6.2c.884. This affects the function setWanConfig of the file /cgi-bin/cstecgi.cgi. Executing a manipulation of the argument pppoeUser/priDns/secDns can lead to buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| totolink ca300-poe firmware | = 6.2c.884 | No fix listed |
References
- VDB-432023 | TOTOLINK CA300-PoE cstecgi.cgi setWanConfig buffer overflow technical-description vdb-entry
- VDB-432023 | CTI Indicators (IOB, IOC, IOA) permissions-required signature
- CVE-2026-123960 | CVE Analysis and Report third-party-advisory
- Submit #1033722 | TOTOLINK CA300-PoE CA300-PoE_Firmware V6.2c.884 Buffer Overflow third-party-advisory
- lavender-bicycle-a5a.notion.site exploit
- www.totolink.net product