Vulnerability · Published Mar 23, 2023 · Assigned by AMD
CVE-2023-20559
High 8.8
In plain English
A high-severity security flaw in 2nd Gen AMD Ryzen™ Threadripper™ Processor from AMD. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.7%top 47.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Insufficient control flow management in AmdCpmGpioInitSmm may allow a privileged attacker to tamper with the SMM handler potentially leading to escalation of privileges.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| AMD | Ryzen™ 2000 Series | various |
| AMD | Ryzen™ 3000 Series | various |
| AMD | Ryzen™ 4000 Series | various |
| AMD | Ryzen™ 5000 Series | various |
| AMD | 2nd Gen AMD Ryzen™ Threadripper™ Processor | Various |
| AMD | 3rd Gen AMD Ryzen™ Threadripper™ Processors | various |
| AMD | Ryzen™ Threadripper™ PRO Processor | various |
Weakness: CWE-691 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H