CVE-2026-28323: critical vulnerability in SolarWinds Web Help Desk
SolarWinds Web Help Desk SAML Authentication Bypass Vulnerability
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8epss 1.0%
SolarWinds Web Help Desk is found to be affected by a SAML authentication bypass vulnerability. This requires the SAML 2.0 authentication method to be enabled.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
SolarWinds · Web Help DeskRelated CVEs — SolarWinds Web Help Desk
In the same product, most dangerous first.
CVE-2024-28987CRITICALSolarWinds Web Help Desk Hardcoded Credential VulnerabilityEPSS 93.3%KEVCVE-2025-26399CRITICALSolarWinds Web Help Desk Deserialization of Untrusted Data Privilege Escalation VulnerabilityEPSS 90.6%KEVCVE-2024-28986CRITICALSolarWinds Web Help Desk Java Deserialization Remote Code Execution VulnerabilityEPSS 84.6%KEVCVE-2025-40551CRITICALSolarWinds Web Help Desk Deserialization of Untrusted Data Remote Code Execution VulnerabilityEPSS 84.2%KEVCVE-2025-40536HIGHSolarWinds Web Help Desk Security Control Bypass VulnerabilityEPSS 73.6%KEVCVE-2025-40553CRITICALSolarWinds Web Help Desk Deserialization of Untrusted Data Remote Code Execution VulnerabilityEPSS 68.0%