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Citrix NetScaler security snafus get even worse amid more 0-day reports

ID: b3ba743c-934e-56d9-82be-ffbdf9d74c82

STIX ID: report--b3ba743c-934e-56d9-82be-ffbdf9d74c82

Feed Name: The Register (Security)

Threat Score
70/100

Date Published: 2026-10-05

Date Updated: 2026-10-06

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Citrix confirmed a newly observed SAML-related memory overflow in NetScaler ADC/Gateway (CVE-2026-88779) that can be trivially triggered to cause denial-of-service; the flaw is being actively exploited in the wild, CISA ordered federal patching, and Citrix released mitigations, patches and an IOCs-check script while researchers reproduced the issue.

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