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securitySecurity/M365 SECURITY/CRIT

Analysis of active exploitation of SolarWinds Web Help Desk

sourceMicrosoft Security Blog
calendar_todayFebruary 7, 2026
schedule1 min read
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EXECUTIVE SUMMARY

Active Exploitation of SolarWinds Web Help Desk Uncovered

Summary

The article discusses the active exploitation of SolarWinds Web Help Desk through vulnerabilities CVE‑2025‑40551 and CVE‑2025‑40536. It highlights the potential for domain compromise and provides guidance on patching, hunting, and mitigating these threats.

Key Points

  • Active exploitation of SolarWinds Web Help Desk is occurring.
  • Vulnerabilities involved are CVE‑2025‑40551 and CVE‑2025‑40536.
  • Exploitation can lead to domain compromise.
  • Microsoft Security Blog provides guidance on patching, hunting, and mitigation.

Analysis

The active exploitation of SolarWinds Web Help Desk poses a significant security threat, with the potential for domain compromise. The vulnerabilities identified, CVE‑2025‑40551 and CVE‑2025‑40536, require immediate attention from IT professionals to prevent exploitation. The guidance provided by Microsoft is crucial for mitigating these risks.

Conclusion

IT professionals should prioritize patching SolarWinds Web Help Desk and follow the mitigation strategies outlined by Microsoft to protect their systems from potential domain compromise.