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

SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability. 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.

• CISA KEV-listed (remediation due 2026-02-06)
• EPSS 87.9% (99.5% percentile)

Detection rules

• Suspicious Child Process of SolarWinds WebHelpDesk high

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Read the full analysis on IntelFusions