CVE-2025-40540

Published Feb 24, 2026

Last updated 13 days ago

CVSS critical 9.1

Overview

Description: 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.
Source: psirt@solarwinds.com
NVD status: Analyzed
Products: serv-u

Risk scores

CVSS 3.1

Type: Primary
Base score: 7.2
Impact score: 5.9
Exploitability score: 1.2
Vector string: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Severity: HIGH

Weaknesses

psirt@solarwinds.com: CWE-704

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:solarwinds:serv-u:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "0879DDA2-3F57-41C7-A689-4B904310687E",
            "versionEndExcluding": "15.5.4",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ]
  }
]

References

Sources include official advisories and independent security research.

Overview

Risk scores

CVSS 3.1

Weaknesses

Social media

Configurations

Related CVEs

References