CVE-2025-40536

CVE Enrichment

CVSS: 9.8 CRITICAL
EPSS: 73.56%
EPSS Percentile: 99.47%
CISA KEV: YES — Known Exploited Vulnerability

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.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: psirt@solarwinds.com
Published: 28-Jan-2026 15:16
Last Modified: 17-Jun-2026 16:21
EPSS Date: 2026-10-16
CWE: CWE-693

CVSS Vector


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

CISA KEV Details

Date Added: 2026-02-12
Remediation Due: 2026-02-15
Known Ransomware Campaign Use: Unknown
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.
Notes: https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm ; https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40536 ; https://nvd.nist.gov/vuln/detail/CVE-2025-40536

Affected Products / Versions

solarwinds / web_help_desk
Version / affected range: * · before (exclusive) 2026.1
cpe:2.3:a:solarwinds:web_help_desk:*:*:*:*:*:*:*:*

References

Last enrichment sync: 17-Oct-2026 12:22
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

Update SolarWinds Web Help Desk to version 2026.1 or later, which addresses CVE-2025-26399, CVE-2025-40536, and CVE-2025-40551. Huntress Details Active Exploitation of SolarWinds Web Help Desk

CVE (2)

People (1)

MITRE ATT&CK (11)

Vendors (3)

Products (6)

Tools (4)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.