CISA orders feds to patch actively exploited Citrix flaw by Thursday

BleepingComputer

March 31, 2026 at 7:05 AM

Actively Exploited

Overview

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has mandated that federal agencies must patch their Citrix NetScaler appliances by Thursday to address a vulnerability that is currently being exploited by attackers. This flaw poses a significant risk as it allows unauthorized access and could lead to data breaches or further network compromises. Government agencies using Citrix NetScaler are particularly at risk, and timely action is essential to prevent potential exploitation. The urgency of this directive underscores the importance of maintaining up-to-date security measures in federal systems to protect sensitive information from malicious actors.

Key Takeaways

Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
Affected Systems: Citrix NetScaler appliances
Action Required: Agencies are required to apply the latest patches for Citrix NetScaler appliances as directed by CISA by the specified deadline.
Timeline: Newly disclosed

Original Article Summary

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) ordered government agencies to patch their Citrix NetScaler appliances against an actively exploited vulnerability by Thursday. [...]

Impact

Citrix NetScaler appliances

Exploitation Status

This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.

Timeline

Newly disclosed

Remediation

Agencies are required to apply the latest patches for Citrix NetScaler appliances as directed by CISA by the specified deadline. Specific patch numbers or versions were not mentioned in the article.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Vulnerability, Patch.

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