High 8.1Known exploited (CISA KEV)Published Jan 28, 2026

CVE-2025-40536SolarWinds Web Help Desk Security Control Bypass Vulnerability

Updated under an hour ago (2026-10-19 05:50 UTC)

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It affects SolarWinds Web Help Desk. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Feb 12, 2026; federal agencies had to remediate by Feb 15, 2026. Treat that date as your deadline.

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Every CVE for SolarWinds Web Help Desk

Exploited in the last 30 days

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: 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-693
Known exploited: Added to CISA KEV Feb 12, 2026; federal remediation due Feb 15, 2026Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
EPSS (exploitation in the next 30 days): 73.56% (percentile 99)
Assigned by: SolarWinds
NVD analysis: Analyzed
Record last updated: Feb 26, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

SolarWinds Web Help Desk solarwinds:web_help_desk (from the name)	12.8.8 HF1 and below	CNA record
solarwinds web_help_desk solarwinds:web_help_desk	before 2026.1	NVD

References

https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40536vendor-advisory, patch
https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htmrelease-notes
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-40536us-government-resource
https://www.huntress.com/blog/active-exploitation-solarwinds-web-help-desk-cve-2025-26399third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.