CVE-2025-30038 Session ID leakage in Zone.Identifier of downloaded files
Attackers can read session IDs from downloaded files via Windows NTFS metadata, potentially leading to session hijacking in CGM CLININET.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-30038?
CVE-2025-30038 is a high-severity vulnerability in CGM CLININET, published on 27 Aug 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
The vulnerability consists of a session ID leak when saving a file downloaded from CGM CLININET. The identifier is exposed through a built-in Windows security feature that stores additional metadata in an NTFS alternate data stream (ADS) for all files downloaded from potentially untrusted sources.
Weakness: CWE-1230
Which versions are affected by CVE-2025-30038?
How do I fix CVE-2025-30038?
No fix has been published for CVE-2025-30038 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-30038 being exploited?
There is no known exploitation of CVE-2025-30038 in the wild and no public exploit code.
Sources
Also known as GHSA-mpgx-6896-6pg4.