AMD Ryzen 3 Pro 3300u Firmware vulnerabilities

5 CVEs affecting AMD Ryzen 3 Pro 3300u Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2022-27672, published 2023-03-01.

Highest priority

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

CVE-2021-26341, published 2022-03-11. Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days. Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage.
CVE-2021-26401, published 2022-03-11. Medium severity, CVSS 5.6. EPSS: 0.3% chance of exploitation in the next 30 days. LFENCE/JMP (mitigation V2-2) may not sufficiently mitigate CVE-2017-5715 on some AMD CPUs.
CVE-2022-27672, published 2023-03-01. Medium severity, CVSS 4.7. EPSS: 0.3% chance of exploitation in the next 30 days. When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode switch potentially resulting in information disclosure.
CVE-2021-26339, published 2022-05-11. Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days. A bug in AMD CPU’s core logic may allow for an attacker, using specific code from an unprivileged VM, to trigger a CPU core hang resulting in a potential denial of service. AMD believes the specific…
CVE-2021-26346, published 2023-01-11. Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days. Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader may allow an attacker to introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential…