CVE-2026-123957 TOTOLINK CA300-PoE cstecgi.cgi setIpQosRules buffer overflow
CriticalCVSS 9.4
- Published
- Updated
- Exploit status
- No public exploit known
Description
A vulnerability was determined in TOTOLINK CA300-PoE 6.2c.884. Impacted is the function setIpQosRules of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument ipStart causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| totolink ca300-poe firmware | = 6.2c.884 | No fix listed |
References
- VDB-432020 | TOTOLINK CA300-PoE cstecgi.cgi setIpQosRules buffer overflow technical-description vdb-entry
- VDB-432020 | CTI Indicators (IOB, IOC, IOA) permissions-required signature
- CVE-2026-123957 | CVE Analysis and Report third-party-advisory
- Submit #1033672 | TOTOLINK CA300-PoE CA300-PoE_Firmware V6.2c.884 Buffer Overflow third-party-advisory
- lavender-bicycle-a5a.notion.site exploit
- www.totolink.net product