{"answers":{"affected":"It affects 2 products.","exploited":"Yes. Attackers have exploited CVE-2023-3519 in the wild since at least 19 Jul 2023, including in ransomware campaigns.","fix":"No fix has been published for CVE-2023-3519 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 9 Aug 2023.","what":"CVE-2023-3519 is a critical vulnerability in Citrix NetScaler ADC, published on 19 Jul 2023."},"fix_prompt":"Check this codebase for CVE-2023-3519 and fix it if it is affected.\n\nWhat it is: CVE-2023-3519 is a critical vulnerability in Citrix NetScaler ADC, published on 19 Jul 2023. \nExploitation: Yes. Attackers have exploited CVE-2023-3519 in the wild since at least 19 Jul 2023, including in ransomware campaigns.\n\nAffected product: Citrix NetScaler ADC. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-3519/ (Markdown: https://insights.sbomify.com/CVE-2023-3519/index.md)","id":"CVE-2023-3519","markdown":"https://insights.sbomify.com/CVE-2023-3519/index.md","name":"CVE-2023-3519","record":{"aliases":["GHSA-m4j4-rmj5-w5gp"],"analysis":null,"analysis_generated_by":null,"assigner":"Citrix","cpe":[{"product":"netscaler_application_delivery_controller","vendor":"citrix"},{"product":"netscaler_gateway","vendor":"citrix"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-94","name":"Improper Control of Generation of Code"}],"description":"Unauthenticated remote code execution","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2023-07-18","github_poc":13,"max_poc_stars":228,"metasploit":1,"nuclei":1,"refs":[{"date":"2023-07-21T20:17:43Z","kind":"github_poc","ref":"https://github.com/BishopFox/CVE-2023-3519","stars":228,"title":"RCE exploit for CVE-2023-3519"},{"date":"2023-07-20T16:05:07Z","kind":"github_poc","ref":"https://github.com/securekomodo/citrixInspector","stars":96,"title":"Passively fingerprint Citrix ADC / NetScaler ADC \u0026 Gateway builds and detect known CVEs — CVE-2023-3519, CitrixBleed 2/3, CVE-2026-8452, and CVE-2026-88771/88772 (KEV)"},{"date":"2023-08-10T18:22:57Z","kind":"github_poc","ref":"https://github.com/mandiant/citrix-ioc-scanner-cve-2023-3519","stars":65,"title":null},{"date":"2023-07-20T13:16:38Z","kind":"github_poc","ref":"https://github.com/telekom-security/cve-2023-3519-citrix-scanner","stars":54,"title":"Citrix Scanner for CVE-2023-3519"},{"date":"2023-07-21T08:55:28Z","kind":"github_poc","ref":"https://github.com/mr-r3b00t/CVE-2023-3519","stars":13,"title":null},{"date":"2023-07-21T22:10:03Z","kind":"github_poc","ref":"https://github.com/SalehLardhi/CVE-2023-3519","stars":11,"title":"CVE-2023-3519 vuln for nuclei scanner"},{"date":"2023-08-24T12:24:24Z","kind":"github_poc","ref":"https://github.com/Chocapikk/CVE-2023-3519","stars":5,"title":"Citrix ADC RCE CVE-2023-3519"},{"date":"2023-10-27T18:39:31Z","kind":"github_poc","ref":"https://github.com/dhammerg/CVE-2023-3519","stars":5,"title":"Stack-Overflow on Citrix"}],"tier":"exploited"},"has_fix":null,"headline":"Citrix NetScaler ADC and NetScaler Gateway Code Injection","id":"CVE-2023-3519","indexable":false,"kev":{"dateAdded":"2023-07-19","dueDate":"2023-08-09","knownRansomwareCampaignUse":"Known","product":"NetScaler ADC and NetScaler Gateway","requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","vendorProject":"Citrix","vulnerabilityName":"Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2023"},"n_packages":0,"n_references":2,"next":{"headline":"Sensitive Cookie in HTTPS Session Without 'Secure' Attribute in it-novum/openitcockpit","id":"CVE-2023-3520"},"packages":[],"prev":{"headline":"JWT Auth in L7 Intentions Allow For Mismatched Service Identity and JWT Providers for Access","id":"CVE-2023-3518"},"products":["NetScaler ADC","NetScaler Gateway"],"published":"2023-07-19","related":[{"cvss_score":9.5,"headline":"Citrix NetScaler Improper Input Validation","id":"CVE-2026-88771","kev_date_added":"2026-09-27","published":"2026-09-27"},{"cvss_score":9.5,"headline":"Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer","id":"CVE-2026-88772","kev_date_added":"2026-09-27","published":"2026-09-27"},{"cvss_score":9.4,"headline":"Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow","id":"CVE-2023-4966","kev_date_added":"2023-10-18","published":"2023-10-10"},{"cvss_score":9.3,"headline":"Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel","id":"CVE-2026-19490","kev_date_added":"2026-09-09","published":"2026-08-19"},{"cvss_score":9.3,"headline":"Citrix NetScaler Out-of-Bounds Read","id":"CVE-2026-3055","kev_date_added":"2026-03-30","published":"2026-03-23"},{"cvss_score":9.3,"headline":"Citrix NetScaler ADC and Gateway Out-of-Bounds Read","id":"CVE-2025-5777","kev_date_added":"2025-07-10","published":"2025-06-17"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Citrix"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2023-3519/"}