CVE-2025-4234 Cortex XDR Microsoft 365 Defender Pack: Cleartext Exposure of Credentials
Attackers with access to application logs can view exposed user credentials, compromising account security.
- 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-2025-4234?
CVE-2025-4234 is a low-severity vulnerability in Palo Alto Networks Cortex XDR Microsoft 365 Defender Pack, published on 12 Sep 2025. 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
A problem with the Palo Alto Networks Cortex XDR Microsoft 365 Defender Pack can result in exposure of user credentials in application logs. Normally, these application logs are only viewable by local users and are included when generating logs for troubleshooting purposes. This means that these credentials are exposed to recipients of the application logs.
Weakness: CWE-532
Which versions are affected by CVE-2025-4234?
How do I fix CVE-2025-4234?
No fix has been published for CVE-2025-4234 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-4234 being exploited?
There is no known exploitation of CVE-2025-4234 in the wild and no public exploit code.
Sources
Also known as GHSA-mmc8-8j7m-rcwj.