AMD Ryzen 7 Pro 2700u Firmware vulnerabilities

4 CVEs affecting AMD Ryzen 7 Pro 2700u Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2021-26316, published 2023-01-11.

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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-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-2021-26316, published 2023-01-11. High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days. Failure to validate the communication buffer and communication service in the BIOS may allow an attacker to tamper with the buffer resulting in potential SMM (System Management Mode) arbitrary code…