SolarWinds Web Help Desk Security Control Bypass Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2026-02-12
• EPSS: 74% chance of exploitation in the next 30 days (higher than 99% of CVEs)
• Critical severity: CVSS 9.8

[ Description ]Official 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.

CISA: SolarWinds Web Help Desk contains a security control bypass vulnerability that could allow an unauthenticated attacker to gain access to certain restricted functionality.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 15 Feb 2026): Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_rel…Release Notes
• www.solarwinds.com/trust-center/security-advisories/CVE-2025-40536Vendor Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource
• www.huntress.com/blog/active-exploitation-solarwinds-web-help-desk-cve-2025-26399Third Party Advisory