CVE-2025-40536
SolarWinds Web Help Desk Security Control Bypass Vulnerability
- High 8.1
- Exploited: added to CISA KEV 12 Feb 2026
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.
Key facts
- Published
- 28 Jan 2026
- Last changed
- 26 Feb 2026
- Assigned by
- SolarWinds
- KEV added
- 12 Feb 2026
- KEV fix due
- 15 Feb 2026
- EPSS
- 73.562% likely to be exploited in the next 30 days, higher than 99.474% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: no; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 8.1CVSS 3.1, Highfrom the CNA (SolarWinds)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
What to do
- SolarWinds recommends customers upgrade to Web Help Desk version 2026.1.CNA solution statement
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
CAPEC-153 Input Data Manipulation (CNA impact statement)
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| SolarWinds | Web Help Desk |
|
Timeline
- 28 Jan 2026 Published
- 12 Feb 2026 CVE-2025-40536 added to CISA KEV
- 12 Feb 2026 Added to the CISA KEV catalogue