Mmastodon TechnologyCybersecurity first seen 14 h ago, last 14 h ago, peak #8
Citrix NetScaler zero-day memory flaw added to CISA KEV
Original: 🤖 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.
Why now: An actively exploited zero-day in widely deployed networking hardware demands urgent patching.
CitrixNetScaler ADCNetScaler GatewayCISA
Evidence
- 🤖 CVE-2026-88779 (CVSS 8.7): memory corruption (CWE-119) in Citrix NetScaler ADC/Gateway, reachable unauthenticated over the network → DoS. Exploited as a 0-day, added to CISA KEV. Emergency fixes: ADC 🔗 https:// support.citrix.com/support-hom… · cloud@infosec.exchange · 1
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