Alerts
Critical Vulnerabilities in SolarWinds Web Help Desk
30 January 2026
SolarWinds has released security updates to address multiple critical vulnerabilities in their SolarWinds Web Help Desk. Users and administrators of affected products are advised to update to the latest version immediately.
Background
SolarWinds has released security updates addressing multiple critical vulnerabilities (CVE-2025-40551, CVE-2025-40552, CVE-2025-40554, CVE-2025-40554) in their SolarWinds Web Help Desk. The vulnerabilities have a Common Vulnerability Scoring System (CVSS v3.1) score of 9.8 out of 10.
Impact
The vulnerabilities are:
CVE-2025-40551 - Successful exploitation of this untrusted data deserialisation vulnerability could allow an unauthenticated attacker to run commands on the host machine.
CVE-2025-40552 - Successful exploitation of this authentication bypass vulnerability could allow an unauthenticated attacker to execute actions and methods.
CVE-2025-40553 - Successful exploitation of this untrusted data deserialisation vulnerability could allow an unauthenticated attacker to run commands on the host machine.
CVE-2025-40554 - Successful exploitation of this authentication bypass vulnerability could allow an attacker to invoke specific actions within Web Help Desk.
Affected Products
The vulnerabilities affect SolarWinds Web Help Desk 12.8.8 HF1 and all previous versions.
Mitigation
Users and administrators of affected products are advised to update to the latest version immediately.
References
https://nvd.nist.gov/vuln/detail/cve-2025-40551
https://www.solarwinds.com/trust-center/security-advisories/cve-2025-40551
https://nvd.nist.gov/vuln/detail/CVE-2025-40552
https://www.solarwinds.com/trust-center/security-advisories/cve-2025-40552
https://nvd.nist.gov/vuln/detail/CVE-2025-40553
https://www.solarwinds.com/trust-center/security-advisories/cve-2025-40553
https://nvd.nist.gov/vuln/detail/CVE-2025-40554
https://www.solarwinds.com/trust-center/security-advisories/cve-2025-40554