CVE-2026-3055
CriticalPublished
Insufficient input validation leading to memory overread
- Published
- Mar 23, 2026
- Updated
- Mar 31, 2026
- Assigning CNA
- NetScaler
- Evidence observed
- Mar 30, 2026
Primary CVSS
9.3/ 10Critical
nvd · CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X4.0%
Low · next 30 days
- Percentile
- 90.5%
- Model date
- Oct 17, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
Insufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading to memory overread
Sources
Repository evidence: Files: 2 · Repositories: 2
1 Module1 Template
modules/auxiliary/scanner/http/citrix_netscaler_cve_2026_3055.rb
Metasploit Framework modulesDeclared conditions
- verification: check_declared($.auxiliary_scanner/http/citrix_netscaler_cve_2026_3055.check)
http/cves/2026/CVE-2026-3055.yaml
Nuclei TemplatesDeclared conditions
- network: http($.protocol_keys)
- verification: dsl($.matchers[*].type)
Responsible use
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