{"id":81157,"date":"2026-06-27T12:32:55","date_gmt":"2026-06-27T09:02:55","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-49412-use-after-free-bug-in-the-ipv6_msfilter-socket-option-handler\/"},"modified":"2026-06-27T12:32:55","modified_gmt":"2026-06-27T09:02:55","slug":"cve-2026-49412-use-after-free-bug-in-the-ipv6_msfilter-socket-option-handler","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-49412-use-after-free-bug-in-the-ipv6_msfilter-socket-option-handler\/","title":{"rendered":"CVE-2026-49412 &#8211; Use-after-free bug in the IPV6_MSFILTER socket option handler"},"content":{"rendered":"<p>CVE ID :CVE-2026-49412<\/p>\n<p>  Published : June 27, 2026, 9:02 a.m. | 42\u00a0minutes ago<\/p>\n<p>  Description :The kernel handler for IPV6_MSFILTER dropped a serializing lock in order to copy the source-filter list from userspace, then reacquired the lock.  During this window another thread could free the multicast filter structure, leaving the handler with a stale pointer to freed memory.<\/p>\n<p>An unprivileged local user can exploit this use-after-free to escalate privileges.<\/p>\n<p>  Severity: 0.0 | NA<\/p>\n<p>  Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID :CVE-2026-49412 Published : June 27, 2026, 9:02 a.m. | 42\u00a0minutes ago Description :The kernel handler for IPV6_MSFILTER dropped a serializing lock in order to copy the source-filter list from userspace, then reacquired the lock. During this window another thread could free the multicast filter structure, leaving the handler with a stale pointer to &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-81157","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/81157","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=81157"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/81157\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=81157"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=81157"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=81157"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}