{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-20026 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-20026 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-20026 is a medium-severity use after free vulnerability in Cisco Secure Firewall Threat Defense (FTD) Software, published on 7 Jan 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-2026-20026 and fix it if it is affected.\n\nWhat it is: CVE-2026-20026 is a medium-severity use after free vulnerability in Cisco Secure Firewall Threat Defense (FTD) Software, published on 7 Jan 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-2026-20026 in the wild and no public exploit code.\n\nAffected product: Cisco Secure Firewall Threat Defense (FTD) 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-2026-20026/ (Markdown: https://insights.sbomify.com/CVE-2026-20026/index.md)","id":"CVE-2026-20026","markdown":"https://insights.sbomify.com/CVE-2026-20026/index.md","name":"CVE-2026-20026","record":{"aliases":["GHSA-xc37-chcm-mxpf"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco Snort IPS Engine","requires_auth":"none","summary":"Unauthenticated remote attackers can trigger a use-after-free in Snort 3, causing denial of service or information leakage.","user_interaction":"not_required","vuln_class":"use_after_free"},"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:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-415","name":"Double Free"}],"description":"Multiple\u0026nbsp;Cisco products are affected by a vulnerability in the processing of DCE/RPC requests that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to leak sensitive information or to restart, resulting in an interruption of packet inspection.\r\n\r\nThis vulnerability is due to an error in buffer handling logic when processing DCE/RPC requests, which can result in a buffer use-after-free read. An attacker could exploit this vulnerability by sending a large number of DCE/RPC requests through an established connection that is inspected by Snort 3. A successful exploit could allow the attacker to unexpectedly restart the Snort 3 Detection Engine, which could cause a denial of service (DoS).","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":"Multiple Cisco Products Snort 3 DCERPC Vulnerabilities","id":"CVE-2026-20026","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Cisco Snort DCERPC Stub Data Out of Bounds Read","id":"CVE-2026-20027"},"packages":[],"prev":{"headline":"Integer overflow in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","id":"CVE-2026-20025"},"products":["Cisco Secure Firewall Threat Defense (FTD) Software","Cisco UTD SNORT IPS Engine Software"],"published":"2026-01-07","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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-02-12","vendors":["Cisco"]},"summary":"Unauthenticated remote attackers can trigger a use-after-free in Snort 3, causing denial of service or information leakage.","url":"https://insights.sbomify.com/CVE-2026-20026/"}