CVE-2025-0994
Published: February 7, 2025
Official Description
Trimble Cityworks contains 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.
CISA KEV Advisory
Trimble Cityworks Deserialization Vulnerability
Trimble Cityworks contains 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.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Risk Analysis
Trimble Cityworks contains a deserialization vulnerability that allows an authenticated user to achieve remote code execution on a Microsoft IIS web server. With an EPSS score of 0.77795 and inclusion in CISA's KEV, this vulnerability is actively exploited and requires immediate attention.
This vulnerability is actively being exploited in the wild and is part of CISA's Known Exploited Vulnerabilities Catalog. Exploitation requires an authenticated user to perform the remote code execution.
It is critical to apply updates from Trimble for Cityworks to remediate this deserialization flaw. Additionally, follow best practices for securing Microsoft IIS web servers and ensure strong authentication mechanisms are in place.
Technical Analysis
CVE-2025-0994 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2025-0994 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (3)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2025-0994 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1