CVE-2025-40536

SolarWinds Web Help Desk

Published 28 Jan 2026 · updated 17 Jun 2026 · Analyzed

9.8 Critical · CVSS 3.1, NVD

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 12 Feb 2026, with a remediation deadline of 15 Feb 2026 for US federal agencies.

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Description

SolarWinds Web Help Desk was found to be susceptible to a security control bypass vulnerability that if exploited, could allow an unauthenticated attacker to gain access to certain restricted functionality.

References

documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm · Release Notes
www.solarwinds.com/trust-center/security-advisories/CVE-2025-40536 · Vendor Advisory
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-40536 · US Government Resource
www.huntress.com/blog/active-exploitation-solarwinds-web-help-desk-cve-2025-26399 · Third Party Advisory