AMD Ryzen 3 5425c Firmware vulnerabilities

22 CVEs affecting AMD Ryzen 3 5425c Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2022-23817, published 2024-08-13.

Highest priority

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

CVE-2022-23823, published 2022-06-15. Medium severity, CVSS 6.5. EPSS: 1.2% chance of exploitation in the next 30 days. A potential vulnerability in some AMD processors using frequency scaling may allow an authenticated attacker to execute a timing attack to potentially enable information disclosure.
CVE-2023-20559, published 2023-04-02. High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days. Insufficient control flow management in AmdCpmGpioInitSmm may allow a privileged attacker to tamper with the SMM handler potentially leading to escalation of privileges.
CVE-2023-20558, published 2023-04-02. High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days. Insufficient control flow management in AmdCpmOemSmm may allow a privileged attacker to tamper with the SMM handler potentially leading to an escalation of privileges.
CVE-2022-23824, published 2022-11-09. Medium severity, CVSS 5.5. EPSS: 0.6% chance of exploitation in the next 30 days. IBPB may not prevent return branch predictions from being specified by pre-IBPB branch targets leading to a potential information disclosure.
CVE-2021-26317, published 2022-05-12. High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days. 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-2021-26386, published 2022-05-12. High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days. A malicious or compromised UApp or ABL may be used by an attacker to issue a malformed system call to the Stage 2 Bootloader potentially leading to corrupt memory and code execution.
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…
CVE-2021-26366, published 2022-05-12. High severity, CVSS 7.1. EPSS: 0.2% chance of exploitation in the next 30 days. 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, published 2022-05-12. High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days. 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.

Latest

CVE-2022-23817, published 2024-08-13. High severity, CVSS 7.3. EPSS: 0.2% chance of exploitation in the next 30 days. Insufficient checking of memory buffer in AMD Secure Processor (ASP) Secure OS may allow an attacker with a malicious trusted application to read/write to the ASP Secure OS kernel virtual address…
CVE-2023-20579, published 2024-02-13. Medium severity, CVSS 6.0. EPSS: 0.2% chance of exploitation in the next 30 days. Improper Access Control in the AMD SPI protection feature may allow a user with Ring0 (kernel mode) privileged access to bypass protections potentially resulting in loss of integrity and…
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…
CVE-2021-46778, published 2022-08-10. Medium severity, CVSS 5.6. EPSS: 0.2% chance of exploitation in the next 30 days. 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…
CVE-2021-26384, published 2022-07-14. High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days. A malformed SMI (System Management Interface) command may allow an attacker to establish a corrupted SMI Trigger Info data structure, potentially leading to out-of-bounds memory reads and writes when…
CVE-2021-26382, published 2022-07-14. Medium severity, CVSS 4.4. EPSS: 0.2% chance of exploitation in the next 30 days. An attacker with root account privileges can load any legitimately signed firmware image into the Audio Co-Processor (ACP,) irrespective of the respective signing key being declared as usable for…