Threats Tagged 'cve-2026-57843'
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Threats Tagged 'cve-2026-57843'
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0 NetBSD has an information disclosure vulnerability in the mm_open() function in sys/dev/mm.c. This flaw allows unprivileged local users to obtain real kernel virtual addresses by opening world-accessible devices like /dev/null or /dev/zero. These devices incorrectly receive the PK_KMEM process flag, enabling attackers to bypass the CANSEE_KPTR obfuscation mechanism. Exploitation can reveal sensitive kernel structures such as struct proc, kauth_cred, filedesc, and vmspace via sysctl KERN_PROC queries. The vulnerability affects NetBSD versions from 9.0 up to but not including 9.5, and versions 10.0 through 10.1 inclusive. The CVSS 4.0 base score is 6.8, indicating medium severity. Join the discussion | CVE Database V5 | 09/11/2026, 13:50:32 UTC Added: 09/11/2026, 14:02:29 UTC |
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