Vulnerability Intelligence Report
Insufficient input validation leading to memory overread
CVE-2026-3055
Insufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading to memory overread
CISA KEV
Nuclei Template
SSVC: Active Exploitation
Automatable
CVSS Base Score
9.3
CRITICAL
EPSS Probability:84.00%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-125 ↗CWE-125 Out-of-bounds Read
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| NetScaler | ADC | 14.1 < 66.59 (affected), 13.1 < 62.23 (affected), 13.1 FIPS and NDcPP < 37.262 (affected) |
| NetScaler | Gateway | 14.1 < 66.59 (affected), 13.1 < 62.23 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
Nuclei Template
SCANNER AVAILABLE
EPSS Score
83.996%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | NetScaler · Vendor · USA |
| Reserved | 2026-02-23T18:00:08 |
| Published | 2026-03-23T20:21:27 |
| Patch Date | 2026-03-23 |
| Last Updated | 2026-03-31T03:55:32 |
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