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- 1Citrix NetScaler zero-day memory flaw added to CISA KEV●🤖 CVE-2026-88779 (CVSS 8.7): memory corruption (CWE-119) in Citrix NetScaler ADC/Gateway, reachable unauthenticated over
A high-severity memory corruption vulnerability, CVE-2026-88779 (CVSS 8.7), in Citrix NetScaler ADC and Gateway can be exploited unauthenticated over the network to cause denial of service. The flaw was attacked as a zero-day and has been added to CISA's Known Exploited Vulnerabilities catalog. Citrix has issued emergency fixes, and security teams are urged to patch immediately.