Critical flaw in SolarWinds Web Help Desk under exploitation

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Critical flaw in SolarWinds Web Help Desk under exploitation

Cybersecuritydive • February 5, 2026

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A critical vulnerability in SolarWinds Web Help Desk is facing exploitation activity, a week after the security flaw was disclosed.

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Active Exploitation of SolarWinds Web Help Desk Vulnerability CVE-2025-40551 Users of SolarWinds Web Help Desk are at risk due to the active exploitation of vulnerability CVE-2025-40551. This vulnerability was published on January 28, 2026, and was added to CISA's Known Exploited Vulnerabilities Catalog on February 3, 2026, requiring federal civilian agencies to implement patches promptly. 75 sources 59

Extracted Entities

Platforms (1)

SolarWinds Web Help Desk