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Citrix security patch release for CVE-2026-3055

Security Patch Release
First reported
Last updated
Happening score
H score 44
2 unique sources, 2 articles

Summary

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Citrix's NetScaler ADC and NetScaler Gateway updates close CVE-2026-3055 and CVE-2026-4368, including a flaw that could leak sensitive memory from configured appliances. The release matters because the issues carry CVSS 9.3 and CVSS 7.7 scores and affect specific gateway and SAML IDP deployments. Customers on impacted versions are being told to apply the latest updates as soon as possible to reduce exposure.

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Timeline

  1. 24.03.2026 07:59 2 articles · 3mo ago

    Citrix releases NetScaler security updates

    Mitigation Patch Update

    Citrix released security updates for NetScaler ADC and NetScaler Gateway to fix CVE-2026-3055 and CVE-2026-4368, including a CVSS 9.3 memory-overread flaw that can let unauthenticated remote attackers leak sensitive appliance memory when a SAML Identity Provider (SAML IDP) profile is configured, and a CVSS 7.7 race condition that can cause user session mixup on gateway or AAA deployments. The affected builds include 14.1 before 14.1-66.59, 13.1 before 13.1-62.23, and 13.1-FIPS/13.1-NDcPP before 13.1-37.262, and customers were urged to inspect NetScaler Configuration strings and apply the latest updates as soon as possible.

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