CVE-2025-40539 json
SolarWinds Serv-U Type Confusion Remote Code Execution Vulnerability
published 8mo ago modified 4mo ago also EUVD-2025-207545
- cvss
- 9.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 47%
- public exploits
- 0
- none known
Summary
A type confusion vulnerability exists in Serv-U which when exploited, gives a malicious actor the ability to execute arbitrary native code as privileged account.
This issue requires administrative privileges to abuse. On Windows deployments, the risk is scored as a medium because services frequently run under less-privileged service accounts by default.
Patch / fix
- solarwinds serv-u 15.5.4
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 8mo ago
Exploit prediction
0.57% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
| NVD | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
Affected products
- SolarWinds Serv-U
Classification
- Weakness
-
- CWE-704 Incorrect Type Conversion or Cast
References
-
solarwinds.com
/trust-center/security-advisories/CVE-2025-40539
vendor-advisory
-
documentation.solarwinds.com
/en/success_center/servu/content/release_notes/servu_15-5-4_release_notes.htm
release-notes, vendor-advisory
Sources
- CVE List CVE-2025-40539
- NVD CVE-2025-40539
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