Vulnerability in AMD 2nd Gen Ryzen™ Threadripper™ Processor
CVE-2023-20558
Insufficient control flow management in AmdCpmOemSmm may allow a privileged attacker to tamper with the SMM handler potentially leading to an escalation of privileges.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (51.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- AMD 2nd Gen Ryzen™ Threadripper™ Processor — versions Various
- AMD 3rd Gen Ryzen™ Threadripper™ Processors — versions various
- AMD Athlon Gold 3150u
- AMD Athlon Gold 3150u Firmware
- AMD Athlon Silver 3050u
- AMD Athlon Silver 3050u Firmware
- AMD Ryzen 3 2200u
- AMD Ryzen 3 2200u Firmware
- AMD Ryzen 3 2300u
- AMD Ryzen 3 2300u Firmware
Weakness classification (CWE)
References
- www.amd.com/en/resources/product-security/bulletin/amd-sb-1027.html (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-20558?
- CVE-2023-20558 is a high-severity vulnerability in AMD 2nd Gen Ryzen™ Threadripper™ Processor, classified under Always-Incorrect Control Flow Implementation. CVSS score: 8.8/10. Published 2023-04-02.
- How severe is CVE-2023-20558?
- High severity. CVSS v3 base score is 8.8 out of 10.