AMD Ryzen 3 3300u Firmware vulnerabilities

28 CVEs affecting AMD Ryzen 3 3300u Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2022-23817, published 2024-08-13.

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

• CVE-2022-29900, published 2022-07-12. Medium severity, CVSS 6.5. EPSS: 3.9% chance of exploitation in the next 30 days. Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions.
• 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-2022-23821, published 2023-11-14. Critical severity, CVSS 9.8. EPSS: 1% chance of exploitation in the next 30 days. Improper access control in System Management Mode (SMM) may allow an attacker to write to SPI ROM potentially leading to arbitrary code execution.
• CVE-2022-23825, published 2022-07-14. Medium severity, CVSS 6.5. EPSS: 0.8% chance of exploitation in the next 30 days. Aliases in the branch predictor may cause some AMD processors to predict the wrong branch type potentially leading to information disclosure.
• CVE-2022-23820, published 2023-11-14. Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days. Failure to validate the AMD SMM communication buffer may allow an attacker to corrupt the SMRAM potentially leading to arbitrary code execution.
• 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-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-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.

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-2022-23815, published 2024-08-13. High severity, CVSS 8.2. EPSS: 0.2% chance of exploitation in the next 30 days. Improper bounds checking in APCB firmware may allow an attacker to perform an out of bounds write, corrupting the APCB entry, potentially leading to arbitrary code execution.
• CVE-2021-26367, published 2024-08-13. Medium severity, CVSS 6.0. EPSS: 0.2% chance of exploitation in the next 30 days. A malicious attacker in x86 can misconfigure the Trusted Memory Regions (TMRs), which may allow the attacker to set an arbitrary address range for the TMR, potentially leading to a loss of integrity…
• 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-2023-20521, published 2023-11-14. Medium severity, CVSS 5.7. EPSS: 0.3% chance of exploitation in the next 30 days. TOCTOU in the ASP Bootloader may allow an attacker with physical access to tamper with SPI ROM records after memory content verification, potentially leading to loss of confidentiality or a denial of…
• 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.
• 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.