{"id":22804,"date":"2026-09-15T08:31:13","date_gmt":"2026-09-15T00:31:13","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-73449"},"modified":"2026-09-15T08:31:13","modified_gmt":"2026-09-15T00:31:13","slug":"cve-2026-73449","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-73449","title":{"rendered":"CVE-2026-73449 [MEDIUM] &#8211; On affected platforms running Arista EOS with both 802.1X port authentication and the RADI"},"content":{"rendered":"<p>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.<br \/>\nThis allows an endpoint session that a RADIUS server or network access control system has ordered disconnected to remain authorized on the network.<br \/>\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.<br \/>\nThis issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>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 segme<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-22804","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/22804","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=22804"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=22804"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=22804"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}