{"id":"CVE-2023-3519","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-3519","generatedAt":"2026-10-31T10:22:31.237Z","title":"Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability","description":"Unauthenticated remote code execution","published":"2023-07-19T18:15:12.000Z","lastModified":"2026-08-05T05:16:39.000Z","status":"Analyzed","sourceIdentifier":"secure@citrix.com","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-94"],"affected":["citrix/netscaler application delivery controller","citrix/netscaler gateway"],"epss":{"score":0.99749,"percentile":0.99954,"date":"2026-10-30","history":[]},"kev":{"listed":true,"dateAdded":"2023-07-19","dueDate":"2023-08-09","knownRansomwareCampaignUse":"Known","notes":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.\nhttps://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467;  https://nvd.nist.gov/vuln/detail/CVE-2023-3519"},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 9 August 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"secure@citrix.com"},{"url":"https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467","tags":["Vendor Advisory"],"source":"secure@citrix.com"},{"url":"http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-3519","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-3519","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}