CVE-2021-26316
- EPSS 0.09%
- Published 11.01.2023 08:15:10
- Last modified 09.04.2025 16:15:16
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 execution.
CVE-2021-46778
- EPSS 0.13%
- Published 10.08.2022 20:15:24
- Last modified 21.11.2024 06:34:42
Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed “Zen 1”, “Zen 2” and “Zen 3” that use simultaneous multithreading (SMT). By measuring the contention level on scheduler queues ...
CVE-2021-26317
- EPSS 0.19%
- Published 12.05.2022 19:15:48
- Last modified 21.11.2024 05:56:05
Failure to verify the protocol in SMM may allow an attacker to control the protocol and modify SPI flash resulting in a potential arbitrary code execution.
CVE-2021-26361
- EPSS 0.13%
- Published 12.05.2022 18:16:53
- Last modified 21.11.2024 05:56:12
A malicious or compromised User Application (UApp) or AGESA Boot Loader (ABL) could be used by an attacker to exfiltrate arbitrary memory from the ASP stage 2 bootloader potentially leading to information disclosure.
CVE-2021-26362
- EPSS 0.13%
- Published 12.05.2022 18:16:53
- Last modified 21.11.2024 05:56:12
A malicious or compromised UApp or ABL may be used by an attacker to issue a malformed system call which results in mapping sensitive System Management Network (SMN) registers leading to a loss of integrity and availability.
CVE-2021-26366
- EPSS 0.13%
- Published 12.05.2022 18:16:53
- Last modified 21.11.2024 05:56:13
An attacker, who gained elevated privileges via some other vulnerability, may be able to read data from Boot ROM resulting in a loss of system integrity.
CVE-2021-26369
- EPSS 0.14%
- Published 12.05.2022 18:16:53
- Last modified 21.11.2024 05:56:13
A malicious or compromised UApp or ABL may be used by an attacker to send a malformed system call to the bootloader, resulting in out-of-bounds memory accesses.
CVE-2020-12965
- EPSS 0.82%
- Published 04.02.2022 23:15:10
- Last modified 21.11.2024 05:00:35
When combined with specific software sequences, AMD CPUs may transiently execute non-canonical loads and store using only the lower 48 address bits potentially resulting in data leakage.