Trimble Cityworks <=15.8.9 & OfficeComp <=23.10 Deserial RCE via IIS
CVE-2025-0994 Published on February 6, 2025
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 customers Microsoft Internet Information Services (IIS) web server.
Known Exploited Vulnerability
This Trimble Cityworks Deserialization Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. 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.
The following remediation steps are recommended / required by February 28, 2025: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Vulnerability Analysis
CVE-2025-0994 is exploitable with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is a Marshaling, Unmarshaling Vulnerability?
The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.
CVE-2025-0994 has been classified to as a Marshaling, Unmarshaling vulnerability or weakness.
Products Associated with CVE-2025-0994
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Affected Versions
Trimble Cityworks:- Before 15.8.9 is affected.
- Before 23.10 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.