CVE-2026-51727 Information disclosure in n/a

Medium 5.3 Published Updated

Unauthenticated attackers can retrieve administrative import and export endpoint information from TOTOLINK T6 routers via crafted POST requests.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-51727?

CVE-2026-51727 is a medium-severity vulnerability in n/a, published on 31 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Incorrect access control in the SystemSettings function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to retrieve administrative import and export endpoint information via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Weakness: CWE-284

Which versions are affected by CVE-2026-51727?

How do I fix CVE-2026-51727?

No fix has been published for CVE-2026-51727 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-51727 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-51727 exists.

Sources

Also known as GHSA-3h9p-94cx-8qfq.

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