CVE-2021-26339

EPSS 0.3%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

11 May 2022Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

A bug in AMD CPU’s core logic may allow for an attacker, using specific code from an unprivileged VM, to trigger a CPU core hang resulting in a potential denial of service. AMD believes the specific code includes a specific x86 instruction sequence that would not be generated by compilers.

Affected products

AMD · Athlon™ Series AMD · EPYC™ Processors AMD · Ryzen™ Series

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References

https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027 https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028