CVE-2025-0994: in the CISA KEV catalogue
Trimble Cityworks Deserialization Vulnerability. CISA added CVE-2025-0994 to the Known Exploited Vulnerabilities catalogue on 2025-02-07 with a default due date of 2025-02-28. Known ransomware campaign use: Unknown. Forensic triage flag: No.
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 description)
- Vendor / product
- Trimble Cityworks
- CWE
- CWE-502
- CISA required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- EPSS
- 31%, percentile 98 (scored 2026-11-03)
EPSS puts about 31 in 100 odds (31%) on exploitation activity being observed in the next 30 days. Its score is higher than or equal to that of 98% of scored CVEs. This is a model estimate about exploitation anywhere, not about your environment.
Vendor and reference links (from CISA)
Your own deadline under CISA BOD 26-04 depends on exposure, automatability and technical impact: work it out with the BOD 26-04 calculator.
Frequently asked questions
Is CVE-2025-0994 in the CISA KEV catalogue?
Yes. CISA added CVE-2025-0994 (Trimble Cityworks Deserialization Vulnerability) to the Known Exploited Vulnerabilities catalogue on 2025-02-07. CISA's default due date for it is 2025-02-28.
Is CVE-2025-0994 used in ransomware attacks?
CISA marks known ransomware campaign use as Unknown for CVE-2025-0994. That means CISA lacks confirmation, not that ransomware groups do not use it.
What should I do about CVE-2025-0994?
CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Sources
- CISA, Known Exploited Vulnerabilities Catalog (accessed 2026-11-03)
- FIRST, Exploit Prediction Scoring System (EPSS) (EPSS by FIRST; scores generated by Empirical Security)
- NVD record for CVE-2025-0994