Vulnerability · Published Aug 9, 2022 · Assigned by AMD
CVE-2021-46778
Medium 5.6
In plain English
A medium-severity security flaw in AMD Processors from AMD. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).
Severity (CVSS NVD)5.6Medium
Exploit odds (30 days)0.2%top 85.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed “Zen 1”, “Zen 2” and “Zen 3” that use simultaneous multithreading (SMT). By measuring the contention level on scheduler queues an attacker may potentially leak sensitive information.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| AMD | AMD Processors | Processor Some AMD Processors |