CVE-2021-26318
Side-channels Related to the x86 PREFETCH Instruction
Vexday Risk Score
3Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS —EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
13 Oct 2021Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
A timing and power-based side channel attack leveraging the x86 PREFETCH instructions on some AMD CPUs could potentially result in leaked kernel address space information.
Affected products
AMD · All supported processorsWant to know if your infrastructure is exposed to this?
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