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#InSEKurity#CVE#NetScaler#Zero-Day#Incident Response
CVE Research
sekurity-team

InSEKurity of the Week (CW39/2026): Citrix NetScaler Zero-Day Exploitation (CVE-2026-88771)

Citrix patched eight NetScaler CVEs on a Sunday, two of them already exploited as zero-days. CVE-2026-88771 affects every ADC and Gateway on an affected build -- default configuration included -- and the August builds most teams installed do not contain the fix.

#InSEKurity#CVE#Citrix+4
Exploit
01
CVE Research
sekurity-team

InSEKurity of the Week (CW35/2026): Citrix NetScaler SAML Heap Overflow (CVE-2026-8452)

Citrix shipped the fix on June 30 and called it a denial of service. Seven weeks later watchTowr turned the same heap overflow into pre-auth root, and web shells landed on unpatched NetScaler appliances within days -- CISA added it to KEV on August 26 with a three-day deadline.

#InSEKurity#CVE#Citrix+4
Exploit
02

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