CVE-2021-46759

MEDIUM

AMD Ryzen 5000 Series Firmware - Unauthenticated Out-of-bounds Write via Improper Syscall Input Validation

Title source: llm
STIX 2.1

Description

Improper syscall input validation in AMD TEE (Trusted Execution Environment) may allow an attacker with physical access and control of a Uapp that runs under the bootloader to reveal the contents of the ASP (AMD Secure Processor) bootloader accessible memory to a serial port, resulting in a potential loss of integrity.

References (1)

Core 1
Core References

Scores

CVSS v3 6.1
EPSS 0.0015
EPSS Percentile 35.1%
Attack Vector PHYSICAL
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-787
Status published
Products (50)
amd/athlon_gold_3150g_firmware picassopi-fp5_1.0.0.e
amd/athlon_gold_3150g_firmware pollockpi-ft5_1.0.0.4
amd/athlon_gold_3150ge_firmware picassopi-fp5_1.0.0.e
amd/athlon_gold_3150ge_firmware pollockpi-ft5_1.0.0.4
amd/athlon_silver_3050ge_firmware picassopi-fp5_1.0.0.e
amd/athlon_silver_3050ge_firmware pollockpi-ft5_1.0.0.4
amd/ryzen_1200_\(af\)_firmware comboam4pi_1.0.0.9
amd/ryzen_1200_\(af\)_firmware comboam4v2_pi_1.2.0.8
amd/ryzen_1200_\(af\)_firmware pinnaclepi-am4_1.0.0.d
amd/ryzen_1200_\(af\)_firmware raven-fp5-am4_1.1.0.f
... and 40 more
Published May 09, 2023
Tracked Since Feb 18, 2026