{"answers":{"affected":"It affects 3 products.","exploited":"Yes. Attackers have exploited CVE-2016-6366 in the wild since at least 24 May 2022.","fix":"No fix has been published for CVE-2016-6366 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 14 Jun 2022.","what":"CVE-2016-6366 is a high-severity memory corruption vulnerability in Cisco Adaptive Security Appliance Software, published on 18 Aug 2016. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2016-6366 and fix it if it is affected.\n\nWhat it is: CVE-2016-6366 is a high-severity memory corruption vulnerability in Cisco Adaptive Security Appliance Software, published on 18 Aug 2016. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2016-6366 in the wild since at least 24 May 2022.\n\nAffected product: Cisco Adaptive Security Appliance 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-2016-6366/ (Markdown: https://insights.sbomify.com/CVE-2016-6366/index.md)","id":"CVE-2016-6366","markdown":"https://insights.sbomify.com/CVE-2016-6366/index.md","name":"CVE-2016-6366","record":{"aliases":["GHSA-pfgh-2mw6-962h"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco ASA firewall","requires_auth":"low_privilege","summary":"Remote authenticated attackers can execute arbitrary code on Cisco ASA devices via crafted SNMP packets, requiring immediate patching.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"adaptive_security_appliance_software","vendor":"cisco"},{"product":"asa_1000v_cloud_firewall_software","vendor":"cisco"},{"product":"pix_firewall_software","vendor":"cisco"}],"cvss":{"score":8.8,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"}],"description":"Buffer overflow in Cisco Adaptive Security Appliance (ASA) Software through 9.4.2.3 on ASA 5500, ASA 5500-X, ASA Services Module, ASA 1000V, ASAv, Firepower 9300 ASA Security Module, PIX, and FWSM devices allows remote authenticated users to execute arbitrary code via crafted IPv4 SNMP packets, aka Bug ID CSCva92151 or EXTRABACON.","ecosystems":[],"exploits":{"exploitdb":1,"first_seen":"2016-08-18","github_poc":1,"max_poc_stars":163,"metasploit":1,"nuclei":0,"refs":[{"date":"2016-09-20T23:19:02Z","kind":"github_poc","ref":"https://github.com/RiskSense-Ops/CVE-2016-6366","stars":163,"title":"Public repository for improvements to the EXTRABACON exploit"},{"date":"2016-08-18","kind":"exploitdb","ref":"40258","stars":null,"title":"Cisco ASA 8.x - 'EXTRABACON' Authentication Bypass"},{"date":null,"kind":"metasploit","ref":"auxiliary/admin/networking/cisco_asa_extrabacon","stars":null,"title":"Cisco ASA Authentication Bypass (EXTRABACON)"}],"tier":"exploited"},"has_fix":null,"headline":"Cisco Adaptive Security Appliance (ASA) SNMP Buffer Overflow","id":"CVE-2016-6366","indexable":true,"kev":{"dateAdded":"2022-05-24","dueDate":"2022-06-14","knownRansomwareCampaignUse":"Unknown","product":"Adaptive Security Appliance (ASA)","requiredAction":"Apply updates per vendor instructions.","vendorProject":"Cisco","vulnerabilityName":"Cisco Adaptive Security Appliance (ASA) SNMP Buffer Overflow Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":"cisco:adaptive_security_appliance_software","products":["cisco:adaptive_security_appliance_software"],"type":"memory_corruption","year":"2016"},"n_packages":0,"n_references":8,"next":{"headline":"Cisco Adaptive Security Appliance (ASA) CLI Remote Code Execution","id":"CVE-2016-6367"},"packages":[],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2016-6365"},"products":["n/a"],"published":"2016-08-18","related":[{"cvss_score":9.9,"headline":"Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Buffer Overflow","id":"CVE-2025-20333","kev_date_added":"2025-09-25","published":"2025-09-25"},{"cvss_score":8.6,"headline":"Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Heap Inspection","id":"CVE-2026-20349","kev_date_added":"2026-08-11","published":"2026-08-11"},{"cvss_score":8.6,"headline":"Cisco ASA and FTD Denial of Service","id":"CVE-2024-20353","kev_date_added":"2024-04-24","published":"2024-04-24"},{"cvss_score":7.8,"headline":"Cisco Adaptive Security Appliance (ASA) CLI Remote Code Execution","id":"CVE-2016-6367","kev_date_added":"2022-05-24","published":"2016-08-18"},{"cvss_score":7.5,"headline":"Cisco ASA and FTD Read-Only Path Traversal","id":"CVE-2020-3452","kev_date_added":"2021-11-03","published":"2020-07-22"},{"cvss_score":7.5,"headline":"Cisco ASA and FTD Information Disclosure","id":"CVE-2020-3259","kev_date_added":"2024-02-15","published":"2020-05-06"}],"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":"attribution","licence":"BSD-3-Clause","name":"Metasploit"},{"class":"attribution","licence":"GPL-2.0-or-later","name":"Exploit-DB"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-01-12","vendors":["n/a"]},"summary":"Remote authenticated attackers can execute arbitrary code on Cisco ASA devices via crafted SNMP packets, requiring immediate patching.","url":"https://insights.sbomify.com/CVE-2016-6366/"}