Vulnerability in Solarwinds Web Help Desk
CVE-2025-40536
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.736 (99.5th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.820 · newest: 0.736 · change: -0.084
Affected products
- Solarwinds Web Help Desk — versions 12.8.8 HF1 and below
- Solarwinds Web Help Desk
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Public proof-of-concept exploits
References
- www.solarwinds.com/trust-center/security-advisories/CVE-2025-40536 (vendor-advisory, patch, Vendor Advisory)
- documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_20… (release-notes, Release Notes)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-40536?
- CVE-2025-40536 is a high-severity vulnerability in Solarwinds Web Help Desk, classified under Protection Mechanism Failure. CVSS score: 8.1/10. Published 2026-01-28.
- How severe is CVE-2025-40536?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2025-40536 known to be exploited?
- Yes. CVE-2025-40536 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-02-12), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.