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New Spectre V2 Attack Variant Leaks Linux Root Password Hash in Minutes

Summary by BleepingComputer
A new Branch Target Reuse (BTR) attack has been devised that can recover root password hashes on Intel computers running Linux in 3-5 minutes on average.

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In the world of information technology, security vulnerabilities are emerging as major threats. One such emerging vulnerability is the Spectre-v2 BTR attack, which exposes weaknesses in Linux memory. The Spectre-v2 BTR attack exposes Linux memory despite existing defenses. A group of academics from VUSec and St. Anna High School reported details concerning a new type of CPU vulnerability… The article "Spectre-v2 BTR Attack Exposes Linux Memory:…

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New Spectre v2 Variant Exposes Intel, AMD, Arm CPUs to Data Leaks

Branch Target Reuse (BTR) is a new Spectre v2 attack targeting JIT compilers in web browsers, language runtimes, and the operating system kernel

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BleepingComputer broke the news in Melville, United States on Tuesday, September 29, 2026.
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