AMD Ryzen 3 3300 Firmware vulnerabilities

3 CVEs affecting AMD Ryzen 3 3300 Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2023-20597, published 2023-09-20.

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Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2023-20555, published 2023-08-08. High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days. Insufficient input validation in CpmDisplayFeatureSmm may allow an attacker to corrupt SMM memory by overwriting an arbitrary bit in an attacker-controlled pointer potentially leading to arbitrary…
• CVE-2023-20594, published 2023-09-20. Medium severity, CVSS 4.4. EPSS: 0.2% chance of exploitation in the next 30 days. Improper initialization of variables in the DXE driver may allow a privileged user to leak sensitive information via local access.
• CVE-2023-20597, published 2023-09-20. Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days. Improper initialization of variables in the DXE driver may allow a privileged user to leak sensitive information via local access.