SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2025-0994

Trimble Cityworks Deserialization Vulnerability

KEVHIGH 8.6EPSS 31.3%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 28 February 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

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.

CVSS 4.0
8.6 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS
31.31% probability · 98th percentile
CISA KEV
Listed 7 February 2025 · due 28 February 2025
Weakness
CWE-502
Affected
trimble/cityworks
Source
ics-cert@hq.dhs.gov

CISA notes

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. 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://nvd.nist.gov/vuln/detail/CVE-2025-0994

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.