CVE-2025-40554: SolarWinds Web Help Desk Authentication Bypass Vulnerability

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 60.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-01-28 · updated 2026-06-17
Weakness: CWE-1390

Description

SolarWinds Web Help Desk was found to be susceptible to an authentication bypass vulnerability that, if exploited, could allow an attacker to invoke specific actions within Web Help Desk.

Affected products

SolarWinds Web Help Desk: before 2026.1 — fixed in 2026.1

How to fix

Upgrade to a fixed version: SolarWinds Web Help Desk 2026.1. Check the vendor advisory for mitigations.

References

https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm
https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40554

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