{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-20120 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-20120 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-20120 is a medium-severity authentication bypass vulnerability in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, published on 16 Sep 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-2026-20120 and fix it if it is affected.\n\nWhat it is: CVE-2026-20120 is a medium-severity authentication bypass vulnerability in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, published on 16 Sep 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-2026-20120 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-2026-20120/ (Markdown: https://insights.sbomify.com/CVE-2026-20120/index.md)","id":"CVE-2026-20120","markdown":"https://insights.sbomify.com/CVE-2026-20120/index.md","name":"CVE-2026-20120","record":{"aliases":["GHSA-vmjc-6h6g-qw8j"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco Firewall Software","requires_auth":"none","summary":"Unauthenticated remote attackers can bypass access controls to reach protected networks due to a logic error in ACL Object Group Search implementation.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[],"cvss":{"score":5.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"description":"A vulnerability in the access control list (ACL) Object Group Search (OGS) implementation of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured access controls.\r\n\r\nThis vulnerability is due to a logic error in populating group access control policies (ACPs) with OGS configured. An attacker could exploit this vulnerability by sending traffic that should be blocked through the device. A successful exploit could allow the attacker to bypass access controls and reach devices in protected networks.","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":"Cisco FTD ACL bypass vulnerability","id":"CVE-2026-20120","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"CIsco FTD Bypass Access List","id":"CVE-2026-20121"},"packages":[],"prev":{"headline":"Cisco TelePresence Collaboration Endpoint Software and RoomOS Software Denial of Service Vulnerability","id":"CVE-2026-20119"},"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":"Unauthenticated remote attackers can bypass access controls to reach protected networks due to a logic error in ACL Object Group Search implementation.","url":"https://insights.sbomify.com/CVE-2026-20120/"}