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CVE-2025-40536: SolarWinds Web Help Desk Security Control Bypass Vulnerability

criticalknown exploitedpublic exploitCVE-2025-40536
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
SolarWinds Web Help Desk contains a security control bypass vulnerability that could allow an unauthenticated attacker to gain access to certain restricted functionality.

CSIRTS triage

vendor: SolarWindsproduct: Web Help DeskAuthentication bypass
What
Web Help Desk contains a security control bypass vulnerability.
Who is affected
Unauthenticated attackers targeting SolarWinds Web Help Desk installations.
Urgency
Immediate action is required due to active exploitation and critical severity.
Action
Update to the latest version of SolarWinds Web Help Desk.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2026-02-12
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-40536

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2025-40536coverage & exploitation statusNVD · CVE.org

Recent advisories for SolarWinds Web Help

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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