CVE-2026-51725 Missing authorization in n/a

Critical 9.1 Published Updated

Unauthenticated attackers can modify the device clock via a crafted POST request due to incorrect access control in the NTPSyncWithHost function.

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-2026-51725?

CVE-2026-51725 is a critical missing authorization 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 NTPSyncWithHost function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to change the device clock via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Weakness: CWE-284

Which versions are affected by CVE-2026-51725?

How do I fix CVE-2026-51725?

No fix has been published for CVE-2026-51725 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-51725 being exploited?

There is no known exploitation of CVE-2026-51725 in the wild and no public exploit code.

Sources

Also known as GHSA-88wq-fpq9-cjr7.

Is CVE-2026-51725 in your software?

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