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Vulnerabilities/CVE-2025-40547Public Intelligence Dossier
Source: solarwinds · Limited verification•Last verified: •Collection Degraded
CVE-2025-40547Unknown / EvaluatingCRITICAL (raw)CVSS 9.1CWE-116

A logic error vulnerability exists in Serv-U which when abused could give a malicious actor with access to admin privileges the ability to execute code

Published: 18 Nov 2025•Last updated: 19 Oct 2026, 01:40 AM IST•Source identifier: psirt@solarwinds.com
Dossier completeness: source-provided sections 2 / 3 · rule guidance not available. Missing source facts count as incomplete.
Official source
CISA KEV catalog
Unknown
KEV status was not determined.
CVSS score
9.1CRITICAL (raw)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Metric sourcepsirt@solarwinds.com
EPSS probability
1%0.010
Percentile61st
Weakness type
CWE-116
No further CWE recorded
Remediation
Patch status unknown
No fixed version or KB recorded

Why It Matters

Analysis dossier

Why It Matters

A logic error vulnerability exists in Serv-U which when abused could give a malicious actor with access to admin privileges the ability to execute code. 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.

SOC priority

High Severity / Review

Actively exploited

Unknown

Publicly disclosed

Unknown

Risk basis: Microsoft or Microsoft-managed product relevance; CRITICAL severity; Critical CVSS without confirmed KEV exploitation

Affected Products & Remediation

1 source-backed product
Affected products and versions (source)
  • solarwinds serv-u · < 15.5.3 · NVD CPE · Source
Recorded patch / KBNot provided by source

Vendor or catalog guidance (source)

Not provided by source

Known exploitation (source facts)

Only what a source states. Unknown means no source has said either way; it is not "not exploited".

CISA KEV
Unknown
Exploited (source statement)
Unknown
Publicly disclosed (source)
Unknown

Suggested hunting (rule-based inference)

SecOps Signal recommendation (rule-based inference). These steps are hunting hypotheses from the vulnerability class; they do not state or imply that exploitation occurred here or anywhere.

No rule-based guidance for this vulnerability class

CISA KEV Record

CISA KEV status was not determined for this record.

Change History & Source Data

— No recorded material change

CNA / source
psirt@solarwinds.com
Record status · verification
UPDATED · NVD API
CPE
cpe:2.3:a:solarwinds:serv-u:*:*:*:*:*:*:*:*

Evidence & Provenance

3 public sources
documentation.solarwinds.comSource recordnvd.nist.govSource recordsolarwinds.comSource record

Linked by the query's stored exact CVE association. Review required tables and validation status before use.

Detection Hunting Query
Target: DeviceTvmSoftwareVulnerabilities•Defender XDR
Detect endpoints exposed to CVE-2025-40547
Purpose: Exposure assessment (Category: Exposure Check)Why linked: Query metadata names CVE-2025-40547
DeviceTvmSoftwareVulnerabilities| where CveId == "CVE-2025-40547"| project DeviceId, DeviceName, OSPlatform, OSVersion, SoftwareVendor, SoftwareName, SoftwareVersion, CveId, VulnerabilitySeverityLevel, RecommendedSecurityUpdate, RecommendedSecurityUpdateId| sort by VulnerabilitySeverityLevel desc
Schema Checked · Not runtime validatedSource: SecOps Signal deterministic template · Limited verificationStatic screening: Passed structure and schema checks; tenant execution is not verified.
Open KQL Library
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Correlated briefings

SecOps Signal surfaces public advisory facts only. A missing value means the source has not published it, not that your environment is unaffected. No tenant inventory is connected.