{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-20352 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-20352 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-20352 is a high-severity denial of service vulnerability in Cisco Identity Services Engine 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-2026-20352 and fix it if it is affected.\n\nWhat it is: CVE-2026-20352 is a high-severity denial of service vulnerability in Cisco Identity Services Engine 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-2026-20352 in the wild and no public exploit code.\n\nAffected product: Cisco Identity Services Engine 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-2026-20352/ (Markdown: https://insights.sbomify.com/CVE-2026-20352/index.md)","id":"CVE-2026-20352","markdown":"https://insights.sbomify.com/CVE-2026-20352/index.md","name":"CVE-2026-20352","record":{"aliases":["GHSA-qwcp-547c-v9v8"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco Identity Services Engine","requires_auth":"none","summary":"Unauthenticated remote attackers can cause a denial of service on Cisco ISE by sending crafted RADIUS requests, blocking network access for unauthenticated endpoints.","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-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"A vulnerability in the RADIUS feature of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.\r\n\r\nThis vulnerability is due to improper handling of certain RADIUS requests. An attacker could exploit this vulnerability by sending a crafted RADIUS request directly to an affected device. A successful exploit could allow the attacker to cause the ISE node to become unavailable. For single node deployments in that condition, endpoints that have not already authenticated would be unable to access the network until the\u0026nbsp;node comes back up on its own.","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 Identity Services Engine RADIUS Denial of Service Vulnerability","id":"CVE-2026-20352","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 Email Gateway Security Hardening Release","id":"CVE-2026-20353"},"packages":[],"prev":{"headline":"Cisco ThousandEyes Virtual Appliance Authenticated Web Interface Command Injection Vulnerability","id":"CVE-2026-20350"},"products":["Cisco Identity Services Engine 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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-17","vendors":["Cisco"]},"summary":"Unauthenticated remote attackers can cause a denial of service on Cisco ISE by sending crafted RADIUS requests, blocking network access for unauthenticated endpoints.","url":"https://insights.sbomify.com/CVE-2026-20352/"}