Critical severity · published Jan 28, 2026
CVE-2025-40536
SolarWinds Web Help Desk Security Control Bypass Vulnerability
In wildKEV
9.8
CVSS
73.6%
EPSS
Yes
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)73.6% · higher than 99% of CVEs
Exploited in the wildYes
CISA KEVListed Feb 12, 2026
Federal remediation dueFeb 15, 2026
Ransomware campaign useNot known
Affected products
Which versions
WH
Web Help Desk · SolarWinds
12.8.8 HF1 and below · source: vendor, NVD, KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-40536
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-40536
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
vendor-advisory
https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40536
release-notes
https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm
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