CVE-2026-6373 Sensitive Data Exposure in Zyxel WAH7601 Router

Medium 6.5 Published Updated

Attackers can obtain sensitive system information from Zyxel WAH7601 routers, facilitating web application fingerprinting and potential further attacks.

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-2026-6373?

CVE-2026-6373 is a medium-severity vulnerability in Zyxel Networks WAH7601, published on 10 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Exposure of sensitive system information to an unauthorized control sphere vulnerability in Zyxel Networks WAH7601 allows Web Application Fingerprinting.

This issue affects WAH7601: through 20072026.

Weakness: CWE-497

Which versions are affected by CVE-2026-6373?

How do I fix CVE-2026-6373?

No fix has been published for CVE-2026-6373 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-6373 being exploited?

There is no known exploitation of CVE-2026-6373 in the wild and no public exploit code.

Sources

Also known as GHSA-3hwg-rq85-p4mc.

Is CVE-2026-6373 in your software?

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