CVE-2026-51664 Information disclosure in n/a
Unauthenticated attackers can obtain Telnet service status information from TOTOLINK T6 routers via a crafted POST request.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-51664?
CVE-2026-51664 is a medium-severity vulnerability in n/a, published on 28 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Incorrect access control in the getTelnetCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain Telnet service enablement status information via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
Weakness: CWE-284
Which versions are affected by CVE-2026-51664?
How do I fix CVE-2026-51664?
No fix has been published for CVE-2026-51664 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-51664 being exploited?
There is no known exploitation of CVE-2026-51664 in the wild and no public exploit code.
Sources
Also known as GHSA-phpc-vv2j-r99m.