CVE-2020-12966 json
AMD EPYC™ Processors contain an information disclosure vulnerability in the Secure Encrypted Virtualization with Encrypted State (SEV-ES) a…
published 2022-02-04 4 y ago modified 2026-06-17 4 mo ago also EUVD-2020-5246
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 24%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- amd epyc_7763_firmware milanpi-sp3_1.0.0.5
- amd epyc_7713p_firmware milanpi-sp3_1.0.0.5
- amd epyc_7713_firmware milanpi-sp3_1.0.0.5
- amd epyc_7663_firmware milanpi-sp3_1.0.0.5
- amd epyc_7643_firmware milanpi-sp3_1.0.0.5
- amd epyc_75f3_firmware milanpi-sp3_1.0.0.5
- amd epyc_7543p_firmware milanpi-sp3_1.0.0.5
- amd epyc_7543_firmware milanpi-sp3_1.0.0.5
- amd epyc_7513_firmware milanpi-sp3_1.0.0.5
- amd epyc_74f3_firmware milanpi-sp3_1.0.0.5
- amd epyc_7453_firmware milanpi-sp3_1.0.0.5
- amd epyc_7443p_firmware milanpi-sp3_1.0.0.5
- amd epyc_7443_firmware milanpi-sp3_1.0.0.5
- amd epyc_7413_firmware milanpi-sp3_1.0.0.5
- amd epyc_73f3_firmware milanpi-sp3_1.0.0.5
- amd epyc_7343_firmware milanpi-sp3_1.0.0.5
- amd epyc_7313p_firmware milanpi-sp3_1.0.0.5
- amd epyc_7313_firmware milanpi-sp3_1.0.0.5
- amd epyc_72f3_firmware milanpi-sp3_1.0.0.5
- amd epyc_7003_firmware milanpi-sp3_1.0.0.5
Exploit prediction
0.31% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- AMD 1st/2nd/3rd Gen AMD EPYC™ Processors
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
amd.com
/en/corporate/product-security/bulletin/amd-sb-1013
mitigation, vendor-advisory
-
openwall.com
/lists/oss-security/2022/08/08/6
mailing-list, third-party-advisory
Sources
- CVE List CVE-2020-12966
- NVD CVE-2020-12966
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.