{"id":"CVE-2023-3519","title":"Unauthenticated remote code execution","summary":"Unauthenticated remote code execution","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-94","CWE-94"],"vendor":"citrix","product":"netscaler_application_delivery_controller","affected":["netscaler_application_delivery_controller >= 12.1, < 12.1-55.297","netscaler_application_delivery_controller >= 13.0, < 13.0-91.13","netscaler_application_delivery_controller >= 13.1, < 13.1-37.159","netscaler_application_delivery_controller >= 13.1, < 13.1-49.13","netscaler_gateway >= 13.0, < 13.0-91.13","netscaler_gateway >= 13.1, < 13.1-49.13"],"patched":["netscaler_application_delivery_controller 13.1-49.13","netscaler_gateway 13.1-49.13"],"published":"2023-07-19","updated":"2026-08-05","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-3519","references":[{"url":"http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.html","label":"secure@citrix.com"},{"url":"https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467","label":"secure@citrix.com"},{"url":"http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-3519","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","kev","in-the-wild","exploit-available"],"epss":0.99749,"epssPercentile":0.99955,"kev":true,"kevDateAdded":"2023-07-19","kevDueDate":"2023-08-09","kevRansomware":true,"exploited":true,"zeroDay":true,"ingestedAt":"2026-08-05T05:45:57.527Z","exploits":{"github":13,"githubRepos":["https://github.com/telekom-security/cve-2023-3519-citrix-scanner","https://github.com/securekomodo/citrixInspector","https://github.com/mr-r3b00t/CVE-2023-3519"],"metasploit":["exploit/freebsd/http/citrix_formssso_target_rce"],"nuclei":["CVE-2023-3519"],"checkedAt":"2026-09-21T15:25:50.789Z"},"exploitAvailable":true,"slug":"CVE-2023-3519","body":"## Overview\n\nUnauthenticated remote code execution\n\n## Affected\n\n- `netscaler_application_delivery_controller >= 12.1, < 12.1-55.297`\n- `netscaler_application_delivery_controller >= 13.0, < 13.0-91.13`\n- `netscaler_application_delivery_controller >= 13.1, < 13.1-37.159`\n- `netscaler_application_delivery_controller >= 13.1, < 13.1-49.13`\n- `netscaler_gateway >= 13.0, < 13.0-91.13`\n- `netscaler_gateway >= 13.1, < 13.1-49.13`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `netscaler_application_delivery_controller 13.1-49.13`\n- `netscaler_gateway 13.1-49.13`","depth":"hadal","depthScore":100,"depthScoreParts":{"impact":53.9,"likelihood":19.9,"exploitation":25,"ransomware":5},"changes":[{"seq":4651,"id":"CVE-2023-3519","ts":1788887197243,"field":"exploit_available","old":"false","new":"true"},{"seq":3534,"id":"CVE-2023-3519","ts":1788886313322,"field":"exploit_available","old":"true","new":"false"},{"seq":2388,"id":"CVE-2023-3519","ts":1788882982633,"field":"exploit_available","old":"false","new":"true"},{"seq":1417,"id":"CVE-2023-3519","ts":1788882395514,"field":"exploit_available","old":"true","new":"false"},{"seq":531,"id":"CVE-2023-3519","ts":1788881831649,"field":"exploit_available","old":"false","new":"true"}]}