Spectre v2 Branch Target Reuse vulnerability

By Editorial Team | October 1, 2026
A new Spectre v2 Branch Target Reuse vulnerability lets attackers leak a Linux root password hash in minutes, bypassing existing CPU defenses.

Researchers disclosed a new Spectre v2 Branch Target Reuse vulnerability on September 29 that lets an attacker recover a Linux system’s root password hash in minutes, on a fully patched Intel machine, by abusing a gap between how CPUs and just-in-time compilers handle recycled memory. The flaw touches Intel, AMD and Arm processors alike, and…

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