Vulnerability Intelligence Report
Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability
CVE-2023-3519
Unauthenticated remote code execution
CISA KEV
Nuclei Template
SSVC: Active Exploitation
CVSS Base Score
9.8
CRITICAL
Exploitability:3.9
Impact Score:5.9
EPSS Probability:99.72%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-94 ↗CWE-94 Improper Control of Generation of Code ('Code Injection')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Citrix | NetScaler ADC | 13.1 < 49.13 (affected), 13.0 < 91.13 (affected), 13.1-FIPS < 37.159 (affected), 12.1-FIPS < 55.297 (affected), 12.1-NDcPP < 55.297 (affected) |
| Citrix | NetScaler Gateway | 13.1 < 49.13 (affected), 13.0 < 91.13 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
Nuclei Template
SCANNER AVAILABLE
EPSS Score
99.715%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Citrix Systems, Inc. · Vendor · USA |
| Reserved | 2023-07-05T22:22:26 |
| Published | 2023-07-19T17:51:39 |
| Last Updated | 2026-08-05T03:55:52 |
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