CVE-2026-51659 Information disclosure in n/a

High 7.5 Published Updated

Unauthenticated attackers can obtain DMZ configuration information from TOTOLINK T6 routers via a crafted POST request.

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-2026-51659?

CVE-2026-51659 is a high-severity vulnerability in n/a, published on 28 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 getUrlFilterRules function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain DMZ configuration information via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Weakness: CWE-284

Which versions are affected by CVE-2026-51659?

How do I fix CVE-2026-51659?

No fix has been published for CVE-2026-51659 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-51659 being exploited?

There is no known exploitation of CVE-2026-51659 in the wild and no public exploit code.

Sources

Also known as GHSA-xp32-7pxg-3jjj.

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