{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-73449 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-73449 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-73449 is a medium-severity vulnerability in Arista Networks EOS, published on 14 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-73449 and fix it if it is affected.\n\nWhat it is: CVE-2026-73449 is a medium-severity vulnerability in Arista Networks EOS, published on 14 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-73449 in the wild and no public exploit code.\n\nAffected product: Arista Networks EOS. 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-2026-73449/ (Markdown: https://insights.sbomify.com/CVE-2026-73449/index.md)","id":"CVE-2026-73449","markdown":"https://insights.sbomify.com/CVE-2026-73449/index.md","name":"CVE-2026-73449","record":{"aliases":["GHSA-x95c-w9r9-rqxj"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Arista EOS","requires_auth":"low_privilege","summary":"An attacker can bypass RADIUS dynamic authorization to keep unauthorized 802.1X sessions active on Arista EOS devices with specific proxy configurations.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Arista","cpe":[],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:L","version":"4.0"},"cwes":[{"id":"CWE-290","name":"Authentication Bypass by Spoofing"}],"description":"On affected platforms running Arista EOS with both 802.1X port authentication and the RADIUS proxy feature configured with dynamic authorization, a low-privileged attacker on an adjacent network segment who induces a RADIUS packet through a configured RADIUS proxy client can prevent RADIUS dynamic authorization messages, including Change-of-Authorization (CoA) and Disconnect-Requests as defined in RFC 5176, from being applied to locally authenticated 802.1X sessions.\nThis allows an endpoint session that a RADIUS server or network access control system has ordered disconnected to remain authorized on the network.\nBoth 802.1X port authentication with dynamic authorization and RADIUS proxy with dynamic authorization must be explicitly configured for a deployment to be exposed to this issue.\nThis issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks.","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 EOS","id":"CVE-2026-73449","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Security Advisory 0161","id":"CVE-2026-73450"},"packages":[],"prev":{"headline":"Security Advisory 0162 - gNSI Certz/Bootz OS Command Injection via Crafted Rotate Request","id":"CVE-2026-73447"},"products":["EOS"],"published":"2026-09-14","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-15","vendors":["Arista Networks"]},"summary":"An attacker can bypass RADIUS dynamic authorization to keep unauthorized 802.1X sessions active on Arista EOS devices with specific proxy configurations.","url":"https://insights.sbomify.com/CVE-2026-73449/"}