CVE-2026-3055: listed in the CISA KEV catalog

CVE-2026-3055 · KEV 2026-03-30

Insufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading to memory overread

Is CVE-2026-3055 exploited?

• Listed in the CISA KEV catalog on 2026-03-30.
• Federal remediation due 2026-04-02.
• Past that date by 135 days.
• Public exploit code: none found in monitored sources.
• Public detection rules exist.

Which products and versions are affected?

No affected package list recorded here yet.

Is there a patch?

No patch identifier recorded here yet.

What PlainSec published about CVE-2026-3055

• Citrix NetScaler SAML IDP Flaw Leaks Admin Sessions in Active Exploitation (2026-04-02)
• Federal Agencies Ordered to Patch Citrix NetScaler Flaw (2026-04-01)

Primary sources

• NVD record
• CISA KEV catalog
• Metasploit: auxiliary/scanner/http/citrix_netscaler_cve_2026_3055
• Nuclei template

What this record does not say

• No CVSS score from NVD.
• No EPSS score.
• No affected package data.
• No patch identifier.

KEV and EPSS are re-checked daily. Record last updated 2026-08-11.