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CVE-2025-40536

SolarWinds Web Help Desk Security Control Bypass

8.1 HIGHActively exploited (CISA KEV)EPSS 73.6%
  1. Published28 Jan 2026
  2. Added to CISA KEV12 Feb 2026
  3. Remediation due15 Feb 2026
Actively exploited (CISA KEV)

SolarWinds Web Help Desk contains a security control bypass vulnerability that could allow an unauthenticated attacker to gain access to certain restricted functionality.

Added to KEV: 12 Feb 2026Federal remediation due: 15 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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

SolarWinds Web Help Desk< 2026.1

Remediation

Fixed in
SolarWinds Web Help Desk≥ 2026.1

References

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Frequently asked

Is CVE-2025-40536 being actively exploited?

Yes. CVE-2025-40536 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 12 Feb 2026.

How severe is CVE-2025-40536?

CVE-2025-40536 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 73.6% probability of exploitation.

Which products are affected by CVE-2025-40536?

Affected products include SolarWinds Web Help Desk.

How do I fix CVE-2025-40536?

Upgrade affected software to a fixed version, for example SolarWinds Web Help Desk 2026.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-40536 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.