Vulnerability details
CVE-2025-40536
Actively exploited
SolarWinds Web Help Desk
SolarWinds Web Help Desk Security Control Bypass Vulnerability
CVSS 3.1
8.1High
Official description
SolarWinds Web Help Desk was found to be susceptible to a security control bypass vulnerability that if exploited, could allow an unauthenticated attacker to gain access to certain restricted functionality.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.1High | 3.1 | CVEProject cvelistV5 (CNA) (SolarWinds) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| SolarWinds | Web Help Desk | 12.8.8 HF1 and below | CVEProject cvelistV5 (CNA) |
References and advisories
4- https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40536 vendor-advisorypatch
- https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm release-notes
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-40536 government-resource
- https://www.huntress.com/blog/active-exploitation-solarwinds-web-help-desk-cve-2025-26399 third-party-advisory
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Details
- Published
- 2026-01-28
- Last updated
- 2026-02-26
- State
- Published
- Assigner (CNA)
- SolarWinds
- Kolun priority
- 87 · Critical
CISA KEV catalog
- Date added
- 2026-02-12
- Due date
- 2026-02-15
- Used in ransomware
- Unknown
Exploit prediction (EPSS)
73.56%
Probability of exploitation in 30 days
99.4%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Active
- Technical impact
- Total
Weaknesses (CWE)
- CWE-693Protection Mechanism Failure