Information disclosure in AMD 1st/2nd/3rd Gen Epyc™ Processors
CVE-2020-12966
AMD EPYC™ Processors contain an information disclosure vulnerability in the Secure Encrypted Virtualization with Encrypted State (SEV-ES) and Secure Encrypted Virtualization with Secure Nested Paging (SEV-SNP). A local authenticated attacker could potentially exploit this vulnerability leading to leaking guest data by the malicious hypervisor.
Vulnerability class: Information Disclosure
Published · last modified .
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:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (21.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.amd.com/en/corporate/product-security/bulletin/amd-sb-1013 (Mitigation, Vendor Advisory)
- www.openwall.com/lists/oss-security/2022/08/08/6 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-12966?
- CVE-2020-12966 is a medium-severity vulnerability in AMD 1st/2nd/3rd Gen Epyc™ Processors, classified under Information Disclosure. CVSS score: 5.5/10. Published 2022-02-04.
- How severe is CVE-2020-12966?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2020-12966 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.