SolarWinds Web Help Desk Deserialization of Untrusted Data Remote Code Execution Vulnerability
CVSS v3
9.8
CRITICAL
EPSS Score
86.7%
exploit probability
CISA KEV
Yes
known exploited
Exploitation
active
SSVC status
SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization 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.
SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization 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.
Yes. CVE-2025-40551 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2/6/2026.
CVE-2025-40551 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string 3.1.
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Ranked by exploit probability (EPSS).