# CVE-2025-0994: Trimble Cityworks Deserialization Vulnerability

> CVE-2025-0994: Trimble Cityworks Deserialization Vulnerability. CVSS 8.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2025-0994
Last updated: 2026-06-17T08:27:29Z

- Published: 2025-02-06 16:01 UTC · Updated: 2026-06-17 08:27 UTC · Assigner: icscert
- CVSS: 8.8 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS: 31.1%, 98th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2025-02-07, federal due date 2025-02-28, ransomware use: Unknown
- CWE: CWE-502

## 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.

## CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

## Affected vendors and products

- Trimble: Cityworks
- Trimble: Cityworks (with office companion)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-0994)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-0994)
- [https://learn.assetlifecycle.trimble.com/i/1532182-cityworks-customer-communication-2025-02-05-docx/0?](https://learn.assetlifecycle.trimble.com/i/1532182-cityworks-customer-communication-2025-02-05-docx/0?)
- [https://www.cisa.gov/news-events/ics-advisories/icsa-25-037-04](https://www.cisa.gov/news-events/ics-advisories/icsa-25-037-04)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-0994 · Markdown: https://rewindex.com/cve/CVE-2025-0994.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-0994 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:51:43.826Z