Vulnerability Intelligence Report
SolarWinds Web Help Desk Deserialization of Untrusted Data Remote Code Execution Vulnerability
CVE-2025-40551
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.
CISA KEV
Nuclei Template
SSVC: Active Exploitation
Automatable
CVSS Base Score
9.8
CRITICAL
Exploitability:3.9
Impact Score:5.9
EPSS Probability:84.13%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-502 ↗CWE-502 Deserialization of Untrusted Data
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| SolarWinds | Web Help Desk | 12.8.8 HF1 and below (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
Nuclei Template
SCANNER AVAILABLE
EPSS Score
84.130%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | SolarWinds · Vendor · USA |
| Reserved | 2025-04-16T08:01:25 |
| Published | 2026-01-28T07:33:09 |
| Patch Date | 2026-01-28 |
| Last Updated | 2026-02-26T15:04:49 |
Community Chatter & Buzz