CVE-2026-88137 WebDAV Information Disclosure Vulnerability

Medium 6.5 Published Updated

An authorized attacker can disclose sensitive information via WebDAV in Microsoft Windows and Server products.

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

What is CVE-2026-88137?

CVE-2026-88137 is a medium-severity vulnerability in Microsoft Windows 10 Version 1607, published on 13 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Files or directories accessible to external parties in WebDAV allows an authorized attacker to disclose information over a network.

Weakness: CWE-552

Which versions are affected by CVE-2026-88137?

How do I fix CVE-2026-88137?

No fix has been published for CVE-2026-88137 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-88137 being exploited?

There is no known exploitation of CVE-2026-88137 in the wild and no public exploit code.

Sources

Also known as GHSA-8w8r-2p8f-54gm.

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