CVE-2025-40552

critical

Description

SolarWinds Web Help Desk was found to be susceptible to an authentication bypass vulnerability that if exploited, would allow a malicious actor to execute actions and methods that should be protected by authentication.

References

https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40552

https://www.infosecurity-magazine.com/news/solarwinds-web-help-desk/

https://thehackernews.com/2026/02/cisa-adds-actively-exploited-solarwinds.html

https://www.bleepingcomputer.com/news/security/cisa-flags-critical-solarwinds-rce-flaw-as-actively-exploited/

https://www.securityweek.com/solarwinds-patches-critical-web-help-desk-vulnerabilities/

https://www.helpnetsecurity.com/2026/01/29/solarwinds-web-help-desk-rce-vulnerabilities/

https://thehackernews.com/2026/01/solarwinds-fixes-four-critical-web-help.html

https://securityaffairs.com/187470/security/solarwinds-addressed-four-critical-web-help-desk-flaws.html

https://www.bleepingcomputer.com/news/security/solarwinds-warns-of-critical-web-help-desk-rce-auth-bypass-flaws/

https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm#link6

https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm

Details

Source: Mitre, NVD

Published: 2026-01-28

Updated: 2026-02-03

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

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

Severity: Critical

EPSS

EPSS: 0.00046

Vulnerability Watch

Tenable Research has classified this CVE under the following Vulnerability Watch classification, which includes active and historical (inactive) classifications. You can learn more about these classifications on our blog.

Vulnerability Being Monitored

Detections

Analytics