{"id":81161,"date":"2026-06-27T12:55:12","date_gmt":"2026-06-27T09:25:12","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-49416-integer-overflow-in-vt4-cons_history-ioctl\/"},"modified":"2026-06-27T12:55:12","modified_gmt":"2026-06-27T09:25:12","slug":"cve-2026-49416-integer-overflow-in-vt4-cons_history-ioctl","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-49416-integer-overflow-in-vt4-cons_history-ioctl\/","title":{"rendered":"CVE-2026-49416 &#8211; Integer overflow in vt(4) CONS_HISTORY ioctl"},"content":{"rendered":"<p>CVE ID :CVE-2026-49416<\/p>\n<p>  Published : June 27, 2026, 9:25 a.m. | 2\u00a0hours, 20\u00a0minutes ago<\/p>\n<p>  Description :The CONS_HISTORY ioctl handler did not adequately validate the requested history size.  A large value caused an integer overflow in the buffer size calculation, resulting in a heap allocation smaller than expected.  Subsequent initialization of the buffer wrote beyond the end of the allocation.<\/p>\n<p>An unprivileged local user with access to a vt(4) device can trigger an out-of-bounds write in the kernel, potentially escalating 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-2026-49416 Published : June 27, 2026, 9:25 a.m. | 2\u00a0hours, 20\u00a0minutes ago Description :The CONS_HISTORY ioctl handler did not adequately validate the requested history size. A large value caused an integer overflow in the buffer size calculation, resulting in a heap allocation smaller than expected. Subsequent initialization of the buffer wrote beyond the &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-81161","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/81161","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=81161"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/81161\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=81161"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=81161"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=81161"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}