CVE-2026-51633 Information disclosure in n/a

Medium 4.3 Published Updated

Unauthenticated attackers can obtain guest Wi-Fi credentials via a crafted POST request to the router's CGI interface.

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-2026-51633?

CVE-2026-51633 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 getWiFiEasyGuestCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain simplified guest Wi-Fi configuration, including guest credentials, via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Weakness: CWE-284

Which versions are affected by CVE-2026-51633?

How do I fix CVE-2026-51633?

No fix has been published for CVE-2026-51633 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-51633 being exploited?

There is no known exploitation of CVE-2026-51633 in the wild and no public exploit code.

Sources

Also known as GHSA-cgmh-jfxg-mwch.

Is CVE-2026-51633 in your software?

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