CVE-2025-0994
HighExploitedPublic exploitTrimble Cityworks versions prior to 15.8.9 and Cityworks with office companion versions prior to 23.10 are vulnerable to a deserialization vulnerability.
Published Feb 6, 2025 · Updated Oct 30, 2025
Key Facts
Patch immediately- CVE-2025-0994 is a high-severity vulnerability (CVSS 8.6 v4) affecting Cityworks (Trimble), Cityworks (with office companion).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Feb 6, 2025. Public exploit code is available.
- EPSS estimates a 31% probability of exploitation in the next 30 days.
- Fixed versions are available, including Cityworks 15.8.9, Cityworks (with office companion) 23.10.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v4
8.6
CVSS: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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS (30-day exploit likelihood)
31%
Higher than 98.2% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2025-0994 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Feb 7, 2025 | Feb 28, 2025 | Not reported |
| Industry KEV feed | Feb 6, 2025 | Feb 28, 2025 | Not reported |
| CIRCL KEV | Feb 7, 2025 | Feb 28, 2025 | Not reported |
| ENISA EUVD | Feb 7, 2025 | n/a | Not reported |
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| CityworksTrimble | See advisory | 15.8.9 |
| Cityworks (with office companion) | See advisory | 23.10 |
Patched Releases
Cityworks
15.8.9
Cityworks (with office companion)
23.10
Timeline
Publicly disclosed
Feb 6, 2025
Added to Industry KEV feed
Feb 6, 2025
Added to CISA KEV
Feb 7, 2025
Added to CIRCL KEV
Feb 7, 2025
Added to ENISA EUVD
Feb 7, 2025
Last updated
Oct 30, 2025
Weakness Type
- CWE-502 Deserialization of Untrusted Data
References
- advisoryhttps://learn.assetlifecycle.trimble.com/i/1532182-cityworks-customer-communication-2025-02-05-docx/0?
- advisoryVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
Trimble Cityworks versions prior to 15.8.9 and Cityworks with office companion versions prior to 23.10 are vulnerable to a deserialization vulnerability.
Affected: Cityworks (Trimble); Cityworks (with office companion). The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Feb 6, 2025.
Yes. It was added on Feb 7, 2025 with a federal remediation due date of Feb 28, 2025.
Public exploit code is available.
Fixed versions are available, including Cityworks 15.8.9, Cityworks (with office companion) 23.10.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2025-0994 Running On Your Attack Surface?
Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.
Request A Demo