{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-19489 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-19489 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-19489 is a high-severity memory corruption vulnerability in NetScaler ADC, published on 19 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-19489 and fix it if it is affected.\n\nWhat it is: CVE-2026-19489 is a high-severity memory corruption vulnerability in NetScaler ADC, published on 19 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-19489 in the wild and no public exploit code.\n\nAffected product: 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-2026-19489/ (Markdown: https://insights.sbomify.com/CVE-2026-19489/index.md)","id":"CVE-2026-19489","markdown":"https://insights.sbomify.com/CVE-2026-19489/index.md","name":"CVE-2026-19489","record":{"aliases":["GHSA-8jq9-gg9v-58rv"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"NetScaler ADC Gateway","requires_auth":"none","summary":"A buffer overflow in NetScaler ADC and Gateway allows attackers to execute arbitrary code or cause denial of service.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"NetScaler","cpe":[],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:L","version":"4.0"},"cwes":[{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"}],"description":"Vulnerability in NetScaler ADC and NetScaler Gateway.\n\nThis issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-10-23","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-10-23T23:40:59Z","kind":"github_poc","ref":"https://github.com/CompleteTech-Security/netscaler-cve-2026-19489-check","stars":0,"title":"Offline NetScaler ADC / Gateway evidence checker for CVE-2026-19489. Reported firmware and configuration evidence. Standalone Python; JSON/CSV/HTML reports; no exploit payloads."}],"tier":"poc_unverified"},"has_fix":null,"headline":"Memory corruption in ADC","id":"CVE-2026-19489","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel","id":"CVE-2026-19490"},"packages":[],"prev":{"headline":"Perl versions from 5.9.4 before 5.41.9 produce incorrect regular expression match results when a stale failure flag ends the Aho-Corasick pr","id":"CVE-2026-19487"},"products":["ADC","Gateway"],"published":"2026-08-19","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-20","vendors":["NetScaler"]},"summary":"A buffer overflow in NetScaler ADC and Gateway allows attackers to execute arbitrary code or cause denial of service.","url":"https://insights.sbomify.com/CVE-2026-19489/"}