CVE-2025-40536

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.

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - psirt@solarwinds.com

Published

2026-01-28

Last modified

2026-02-26

Known exploited (CISA KEV)

since 2026-02-12, action due 2026-02-15: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Weaknesses

CWE-693

Affected products

• Web Help Desk (Solarwinds)

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-2025-40536
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-40536
• https://www.huntress.com/blog/active-exploitation-solarwinds-web-help-desk-cve-2025-26399