{"id":21059,"date":"2026-09-12T00:30:54","date_gmt":"2026-09-11T16:30:54","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-57843"},"modified":"2026-09-12T00:30:54","modified_gmt":"2026-09-11T16:30:54","slug":"cve-2026-57843","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-57843","title":{"rendered":"CVE-2026-57843 [MEDIUM] &#8211; NetBSD contains an information disclosure vulnerability in mm_open() within sys\/dev\/mm.c t"},"content":{"rendered":"<p>NetBSD contains an information disclosure vulnerability in mm_open() within sys\/dev\/mm.c that allows unprivileged local users to obtain real kernel virtual addresses by opening world-accessible devices such as \/dev\/null or \/dev\/zero, which incorrectly receive the PK_KMEM process flag. Attackers can exploit this misconfigured flag to bypass the CANSEE_KPTR obfuscation mechanism and read kernel virtual addresses for sensitive kernel structures including struct proc, kauth_cred, filedesc, and vmspace via sysctl KERN_PROC queries.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>NetBSD contains an information disclosure vulnerability in mm_open() within sys\/dev\/mm.c that allows unprivileged local users to obtain real kernel virtual addresses by opening world-accessible device<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-21059","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/21059","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=21059"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21059"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21059"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}