CVE-2025-0994 Trimble Cityworks Deserialization
An authenticated user can achieve remote code execution on the IIS web server via a deserialization flaw in Trimble Cityworks.
- Exploited in the wild
- Since 7 Feb 2025
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-0994?
CVE-2025-0994 is a high-severity unsafe deserialization vulnerability in Trimble Cityworks, published on 6 Feb 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Trimble Cityworks versions prior to 15.8.9 and Cityworks with office companion versions prior to 23.10 are vulnerable to a deserialization vulnerability. This could allow an authenticated user to perform a remote code execution attack against a customer’s Microsoft Internet Information Services (IIS) web server.
Weakness: CWE-502
Which versions are affected by CVE-2025-0994?
It affects 1 product.
Products include Trimble Cityworks.
How do I fix CVE-2025-0994?
No fix has been published for CVE-2025-0994 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 28 Feb 2025.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2025-0994 being exploited?
Yes. Attackers have exploited CVE-2025-0994 in the wild since at least 7 Feb 2025.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-m5q8-8x36-w25p.