# CVE-2023-3519: Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability

> CVE-2023-3519: Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2023-3519
Last updated: 2026-08-05T03:55:52Z

- Published: 2023-07-19 17:51 UTC · Updated: 2026-08-05 03:55 UTC · Assigner: Citrix
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 99.7%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2023-07-19, federal due date 2023-08-09, ransomware use: Known
- CWE: CWE-94

## Description

Unauthenticated remote code execution

## CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

## Affected vendors and products

- Citrix: NetScaler ADC
- Citrix: NetScaler Gateway

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2023-3519)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2023-3519)
- [http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.html](http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.html)
- [https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467](https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2023-3519 · Markdown: https://rewindex.com/cve/CVE-2023-3519.md · JSON: https://rewindex.com/api/v1/cves/CVE-2023-3519 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T04:03:30.194Z