{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-20086 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-20086 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-20086 is a high-severity denial of service vulnerability in Cisco IOS XE Software, published on 25 Mar 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-2026-20086 and fix it if it is affected.\n\nWhat it is: CVE-2026-20086 is a high-severity denial of service vulnerability in Cisco IOS XE Software, published on 25 Mar 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-2026-20086 in the wild and no public exploit code.\n\nAffected product: Cisco IOS XE 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-2026-20086/ (Markdown: https://insights.sbomify.com/CVE-2026-20086/index.md)","id":"CVE-2026-20086","markdown":"https://insights.sbomify.com/CVE-2026-20086/index.md","name":"CVE-2026-20086","record":{"aliases":["GHSA-m53c-9wh4-q9hq"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco wireless controller","requires_auth":"none","summary":"Unauthenticated remote attackers can cause denial of service on Cisco Catalyst CW9800 wireless controllers by sending malformed CAPWAP packets.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-230","name":"Improper Handling of Missing Values"}],"description":"A vulnerability in the processing of Control and Provisioning of Wireless Access Points (CAPWAP) packets of Cisco IOS XE Wireless Controller Software for the Catalyst CW9800 Family could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.\r\n\r This vulnerability is due to improper handling of a malformed CAPWAP packet. An attacker could exploit this vulnerability by sending a malformed CAPWAP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload unexpectedly, resulting in a DoS condition.","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 IOS XE Software","id":"CVE-2026-20086","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 Integrated Management Controller Cross-Site Scripting Vulnerability","id":"CVE-2026-20087"},"packages":[],"prev":{"headline":"Cisco Integrated Management Controller Cross-Site Scripting Vulnerability","id":"CVE-2026-20085"},"products":["Cisco IOS XE Software"],"published":"2026-03-25","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":"2026-03-26","vendors":["Cisco"]},"summary":"Unauthenticated remote attackers can cause denial of service on Cisco Catalyst CW9800 wireless controllers by sending malformed CAPWAP packets.","url":"https://insights.sbomify.com/CVE-2026-20086/"}