Vulnerability in AMD Processors
CVE-2021-46744
An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on AMD CPUs by monitoring ciphertext values over time.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (23.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.4% 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-1033 (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-2021-46744?
- CVE-2021-46744 is a medium-severity vulnerability in AMD Processors, classified under Observable Discrepancy. CVSS score: 6.5/10. Published 2022-05-11.
- How severe is CVE-2021-46744?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2021-46744 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.