Vulnerability in Amd Athlon™ Series
CVE-2021-26339
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…
EPSS: 0.003 (17.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
Public proof-of-concept exploits
References
- psirt@amd.com (x_refsource_MISC, Vendor Advisory)
- psirt@amd.com (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-26339?
- CVE-2021-26339 is a medium-severity vulnerability in Amd Athlon™ Series. CVSS score: 5.5/10. Published 2022-05-11.
- How severe is CVE-2021-26339?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2021-26339 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.