CVE-2025-64391 Path traversal in Agent for Windows

Medium 4.1 Published Updated

A low-privileged local user can exploit arbitrary file write during installation to achieve privilege escalation or code execution.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-64391?

CVE-2025-64391 is a medium-severity path traversal vulnerability in Veeam Agent for Windows, published on 7 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

This vulnerability in Veeam Agent for Microsoft Windows allows a low-privileged local user to make the agent write files to arbitrary locations when an administrator installs it.

Weakness: CWE-1386

Which versions are affected by CVE-2025-64391?

How do I fix CVE-2025-64391?

No fix has been published for CVE-2025-64391 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2025-64391 being exploited?

There is no known exploitation of CVE-2025-64391 in the wild and no public exploit code.

Sources

Also known as GHSA-5r3x-99rx-26hr.

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