Which products and versions are affected by CVE-2025-40554?

Affected: Web Help Desk (Solarwinds) versions >= 12.8.8 HF1 and below. The full list is in the CVE brief.

Is CVE-2025-40554 being exploited in the wild?

It is exploited in the wild, listed in Industry KEV feed since May 1, 2026 and is known to be used in ransomware campaigns.

Is CVE-2025-40554 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2025-40554?

No public exploit code is known.

Is there a fix for CVE-2025-40554?

Fixed versions are available, including Web Help Desk 2026.1.

How urgently should CVE-2025-40554 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2025-40554

CriticalExploited

SolarWinds Web Help Desk was found to be susceptible to an authentication bypass vulnerability that, if exploited, could allow an attacker to invoke specific actions within Web Help Desk.

Published Feb 9, 2026 · Updated Feb 26, 2026

Key Facts

Patch immediately

CVE-2025-40554 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Web Help Desk (Solarwinds).
It is exploited in the wild, listed in Industry KEV feed since May 1, 2026 and is known to be used in ransomware campaigns. No public exploit code is known.
EPSS estimates a 61% probability of exploitation in the next 30 days.
Fixed versions are available, including Web Help Desk 2026.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

61%

Higher than 99.1% of all scored CVEs

Exploited in the wild

Yes

1 catalog listing, used by ransomware

Public exploit code

None known

Get the full CVE-2025-40554 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

SolarWinds Web Help Desk was found to be susceptible to an authentication bypass vulnerability that, if exploited, could allow an attacker to invoke specific actions within Web Help Desk.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
Industry KEV feed	May 1, 2026	n/a	Known

Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
Web Help DeskSolarwinds	>= 12.8.8 HF1 and below	2026.1

Patched Releases

Web Help Desk

2026.1

Timeline

Publicly disclosed
Feb 9, 2026
Last updated
Feb 26, 2026
Added to Industry KEV feed
May 1, 2026

Weakness Type

CWE-1390 Weak Authentication

References

3 more references in the full CVE brief

FAQ

Common Questions.

SolarWinds Web Help Desk was found to be susceptible to an authentication bypass vulnerability that, if exploited, could allow an attacker to invoke specific actions within Web Help Desk.
Affected: Web Help Desk (Solarwinds) versions >= 12.8.8 HF1 and below. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since May 1, 2026 and is known to be used in ransomware campaigns.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Web Help Desk 2026.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2025-40554 Running On Your Attack Surface?

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