{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-20316 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-20316 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-20316 is a medium-severity vulnerability in Cisco IOS XE Software, published on 24 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-20316 and fix it if it is affected.\n\nWhat it is: CVE-2025-20316 is a medium-severity vulnerability in Cisco IOS XE Software, published on 24 Sep 2025. 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-2025-20316 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-2025-20316/ (Markdown: https://insights.sbomify.com/CVE-2025-20316/index.md)","id":"CVE-2025-20316","markdown":"https://insights.sbomify.com/CVE-2025-20316/index.md","name":"CVE-2025-20316","record":{"aliases":["GHSA-84gm-4jph-65cm"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco Catalyst Switch","requires_auth":"none","summary":"An unauthenticated remote attacker can bypass egress ACLs on Cisco Catalyst switches by flooding traffic to flush the MAC address table.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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) programming of Cisco IOS XE Software for Cisco Catalyst 9500X and 9600X Series Switches could allow an unauthenticated, remote attacker to bypass a configured ACL on an affected device.\r\n\r This vulnerability is due to the flooding of traffic from an unlearned MAC address on a switch virtual interface (SVI) that has an egress ACL applied. An attacker could exploit this vulnerability by causing the VLAN to flush its MAC address table. This condition can also occur if the MAC address table is full. A successful exploit could allow the attacker to bypass an egress ACL on an affected device.","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":"Security feature bypass in Cisco IOS XE Software","id":"CVE-2025-20316","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2025"},"n_packages":0,"n_references":1,"next":{"headline":"Cisco UCS Virtual Keyboard Video Monitor (vKVM) Open Redirect Vulnerability","id":"CVE-2025-20317"},"packages":[],"prev":{"headline":"Denial of service in Cisco IOS XE Software","id":"CVE-2025-20315"},"products":["Cisco IOS XE Software"],"published":"2025-09-24","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":"2025-09-24","vendors":["Cisco"]},"summary":"An unauthenticated remote attacker can bypass egress ACLs on Cisco Catalyst switches by flooding traffic to flush the MAC address table.","url":"https://insights.sbomify.com/CVE-2025-20316/"}