CVE-2025-40551—SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability

Vulnerability Name

SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability

Description

SolarWinds Web Help Desk contains a deserialization of untrusted data vulnerability that could lead to remote code execution, which would allow an attacker to run commands on the host machine. This could be exploited without authentication.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:

Unknown

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.

Additional Notes

• https://www.solarwinds.com/trust-center/security-advisories/cve-2025-40551
• https://nvd.nist.gov/vuln/detail/CVE-2025-40551

Related News Articles

• Critical Microsoft SharePoint flaw now exploited in attacksMarch 19, 2026
• Researchers Observe In-the-Wild Exploitation of BeyondTrust CVSS 9.9 VulnerabilityFebruary 13, 2026
• Hackers exploit SolarWinds WHD flaws to deploy DFIR tool in attacksFebruary 9, 2026
• SolarWinds Web Help Desk Exploited for RCE in Multi-Stage Attacks on Exposed ServersFebruary 9, 2026
• CISA Adds Actively Exploited SolarWinds Web Help Desk RCE to KEV CatalogFebruary 4, 2026

Related Weaknesses

• CWE-502