{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-20222 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-20222 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-20222 is a high-severity denial of service vulnerability in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, published on 16 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-20222 and fix it if it is affected.\n\nWhat it is: CVE-2026-20222 is a high-severity denial of service vulnerability in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, published on 16 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-20222 in the wild and no public exploit code.\n\nAffected product: Cisco Secure Firewall Adaptive Security Appliance (ASA) Software. 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-2026-20222/ (Markdown: https://insights.sbomify.com/CVE-2026-20222/index.md)","id":"CVE-2026-20222","markdown":"https://insights.sbomify.com/CVE-2026-20222/index.md","name":"CVE-2026-20222","record":{"aliases":["GHSA-3p99-hh66-cfh4"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Cisco firewall software","requires_auth":"none","summary":"An unauthenticated adjacent attacker can cause a denial of service by sending crafted EIGRP updates, triggering a memory leak and device reload.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[],"cvss":{"score":7.4,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-401","name":"Missing Release of Memory after Effective Lifetime"}],"description":"A vulnerability in the EIGRP implementation in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, adjacent attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition.\r\n\r\nThis vulnerability is due to improper resource management when handling EIGRP update messages. An attacker could exploit this vulnerability by sending crafted EIGRP updates at a high rate to an affected device. A successful exploit could allow the attacker to trigger a memory leak that will eventually cause the affected device to reload unexpectedly.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Denial of service in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","id":"CVE-2026-20222","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Cisco Secure Workload Unauthorized API Access Vulnerability","id":"CVE-2026-20223"},"packages":[],"prev":{"headline":"Multiple Cisco Products Snort 3 Generic Routing Encapsulation Denial of Service Vulnerabilities","id":"CVE-2026-20221"},"products":["Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","Cisco Secure Firewall Threat Defense (FTD) Software"],"published":"2026-09-16","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)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-18","vendors":["Cisco"]},"summary":"An unauthenticated adjacent attacker can cause a denial of service by sending crafted EIGRP updates, triggering a memory leak and device reload.","url":"https://insights.sbomify.com/CVE-2026-20222/"}