Critical memory overflow vulnerability CVE-2026-88779 found in Citrix NetScaler
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Citrix, CISA
Global
October 2, 2026
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COMPAMIR Editorial Team
The COMPAMIR editorial team brings together public reporting and links to the original coverage. We update the page as new information emerges.
Read our editorial policy- Earlier version 110/6/2026, 5:01:12 AM
A new memory overflow vulnerability (CVE-2026-88779) affecting Citrix NetScaler ADC and Gateway has been identified. The bug is being actively exploited in the wild to cause denial of service. CISA has ordered federal agencies to patch the vulnerability by Wednesday.
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Related book
The Art of Memory Forensics: Detecting Malware and Threats in Windows, Linux, and Mac Memory
Author: Michael Hale Ligh, Andrew Case, Jamie Levy, AAron Walters
This book provides a deep technical understanding of memory management and how vulnerabilities like memory overflows are exploited and analyzed, which is essential for understanding the mechanics behind CVE-2026-88779.
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