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CVE-2025-40554

critical

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.

References

https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40554

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: 0.00034

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