Administrator-level code execution via undisclosed logic error
Published Nov 18, 2025 · Updated Feb 26, 2026
Remote code execution in SolarWinds Serv-U 15.5.2 and earlier allows remote authenticated users with admin privileges to execute code. SolarWinds identifies a logic error and CWE-116 output-encoding weakness but has not disclosed the affected component or its incorrect operation on untrusted input. Exploitation requires Serv-U administrative privileges; on Windows, resulting code runs in the typically less-privileged service context.
Summary
What happened
Remote code execution in SolarWinds Serv-U 15.5.2 and earlier allows remote authenticated users with admin privileges to execute code. SolarWinds identifies a logic error and CWE-116 output-encoding weakness but has not disclosed the affected component or its incorrect operation on untrusted input. Exploitation requires Serv-U administrative privileges; on Windows, resulting code runs in the typically less-privileged service context.
The record
- CVE
- CVE-2025-40547
- Published
- Nov 18, 2025
- Updated
- Feb 26, 2026
- Vendor
- SolarWinds
- Product
- Serv-U
- Classifications
- CWE-116
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Nov 18, 2025CVE publishedPublication date reported by the CVE source.
- Feb 26, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=SolarWinds Serv-U 15.5.2 and prior versions
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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