CVE intelligence and bounded remediation
CVE-2025-0994 — Trimble Cityworks Deserialization Vulnerability
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.
- Severity
- High
- CVSS
- 8.8 (3.1)
- Published
- 2025-02-06
- CISA KEV
- Known exploited
- Ecosystem
- windows/system
- Weaknesses
- CWE-502
Affected products
- trimble / cityworks
Showing 1 representative product identities from 2 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.
Matched remediation archetype
Unsafe deserialization and object reconstruction
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Check exposure
- Inventory serialization formats accepted from requests, queues, caches, files, cookies, and cross-service messages.
- Trace whether untrusted input can select classes, types, callbacks, constructors, or object hooks during decoding.
- Identify signing, schema validation, trust-boundary, and compatibility settings for each decoder.
Remediate safely
- Replace native object deserialization with a data-only format and explicit schema validation.
- If replacement is not immediate, use a safe decoder with a minimal type allowlist and disable polymorphic or executable hooks.
- Update the affected library and add inert tests for unknown types, extra fields, malformed nesting, and unsigned data.
Authoritative sources
Complete CVE record and remediation plan
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