Tag: Linux Kernel

Vulnerabilities & Alerts

Reading Root-Owned Files Without Privilege

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Technical Analysis · Linux Kernel Vulnerability Reading Root-Owned Files Without Privilege: What CVE-2026-46333 Reveals About Nine Years of Blind Spot in the Linux Kernel A race window in the Linux kernel ptrace access control allows, via pidfd_getfd(2), the theft of file descriptors held by SUID root binaries about to terminate. Two public exploits exfiltrate SSH…

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Vulnerabilities & Alerts

Dirty Frag (CVE-2026-43284 and CVE-2026-43500)

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Universal Local Privilege Escalation in the Linux Kernel Executive summary On May 7, 2026, researcher Hyunwoo Kim (alias @v4bel) publicly disclosed a new class of Linux kernel vulnerabilities named Dirty Frag (1) (2). This disclosure, brought forward as a result of an embargo break by an unrelated third party, exposes an exploitation chain combining two…

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