Citrix NetScaler Targeted Via New Zero Day
ID: 9d65670a-f083-5a89-a0bd-8c32bd88a39f
STIX ID: report--9d65670a-f083-5a89-a0bd-8c32bd88a39f
Feed Name: Infosecurity Magazine (News)
Threat Score
Citrix has disclosed a high-severity zero-day (CVE-2026-88779, CVSS 8.7) in NetScaler ADC and NetScaler Gateway that can cause service-impacting memory buffer issues (DoS) when appliances are configured as a SAML SP or SAML IdP; Citrix released fixes and deployable NetScaler Global Deny List signatures while CISA added the CVE to its Known Exploited Vulnerabilities catalog and instructed federal agencies to apply mitigations urgently.
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