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CISA orders feds to patch Citrix NetScaler RCE flaw by Saturday

August 27, 2026 · BleepingComputer · Severity: HIGH

CISA has ordered U.S. government agencies to patch their Citrix NetScaler appliances against an actively exploited remote code execution vulnerability by Saturday.

Key Takeaways

  • CISA mandates urgent patching of actively exploited Citrix NetScaler RCE vulnerability for federal agencies.
  • The remote code execution flaw allows attackers to compromise NetScaler appliances without authentication.
  • The Saturday deadline underscores the critical risk of ongoing exploitation in government networks.
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