CVE-2021-26340

2021-12-0600:00:00

AMD

www.cve.org

8.5 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

12.7%

JSON

A malicious hypervisor in conjunction with an unprivileged attacker process inside an SEV/SEV-ES guest VM may fail to flush the Translation Lookaside Buffer (TLB) resulting in unexpected behavior inside the virtual machine (VM).

CNA Affected

[
  {
    "product": "AMD EPYC™",
    "vendor": "AMD",
    "versions": [
      {
        "lessThanOrEqual": "3rd gen EPYC",
        "status": "affected",
        "version": "Processor ",
        "versionType": "custom"
      }
    ]
  }
]

References

www.amd.com/en/corporate/product-security/bulletin/amd-sb-1023