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ONE Sentinel

securitySecurity/THREATS/CRIT

CISA flags new SD-WAN flaw as actively exploited in attacks

sourceBleeping Computer
calendar_todayApril 21, 2026
schedule1 min read
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EXECUTIVE SUMMARY

CISA Urges Immediate Action on Critical SD-WAN Vulnerability

Summary

CISA has issued an urgent directive for U.S. government agencies to address a critical vulnerability in the Catalyst SD-WAN Manager, which is currently being actively exploited in cyberattacks.

Key Points

  • CISA has mandated a four-day window for U.S. government agencies to secure their systems.
  • The vulnerability is associated with the Catalyst SD-WAN Manager.
  • The flaw is actively being exploited, indicating ongoing attacks.
  • The urgency of the directive underscores the critical nature of the threat.

Analysis

The active exploitation of the Catalyst SD-WAN Manager vulnerability highlights a significant security threat to U.S. government agencies. The four-day deadline set by CISA emphasizes the critical nature of the flaw and the need for immediate remediation to prevent potential breaches and data compromises.

Conclusion

IT professionals should prioritize patching and securing systems against this vulnerability in the Catalyst SD-WAN Manager to mitigate the risk of exploitation. Continuous monitoring and adherence to CISA directives are crucial to maintaining security posture.