CVE-2023-20533 7.5 high EPSS 0.5%
High (7.5) in amd. EPSS 0.5% chance of exploitation in the next 30 days.
Insufficient DRAM address validation in System
Management Unit (SMU) may allow an attacker to read/write from/to an invalid
DRAM address, potentially resulting in denial-of-service.
Severity
CVSS 3.1 7.5 high CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HEnable JavaScript to see the metric table and diagram.
EPSS 0.5% chance of exploitation in the next 30 days; higher than 42% of CVEs (scores of 2026-10-31)
Published 2023-11-14
Modified 2026-06-17
Record from the NVD, synced 2026-10-19 Affected amd:epyc_7203_firmware amd:epyc_7203p_firmware amd:epyc_7232p_firmware amd:epyc_7252_firmware amd:epyc_7262_firmware amd:epyc_7272_firmware amd:epyc_7282_firmware amd:epyc_72f3_firmware amd:epyc_7302_firmware amd:epyc_7302p_firmware amd:epyc_7303_firmware amd:epyc_7303p_firmware amd:epyc_7313_firmware amd:epyc_7313p_firmware amd:epyc_7343_firmware amd:epyc_7352_firmware amd:epyc_7373x_firmware amd:epyc_73f3_firmware amd:epyc_7402_firmware amd:epyc_7402p_firmware amd:epyc_7413_firmware amd:epyc_7443_firmware amd:epyc_7443p_firmware amd:epyc_7452_firmware amd:epyc_7453_firmware amd:epyc_7473x_firmware amd:epyc_74f3_firmware amd:epyc_7502_firmware amd:epyc_7502p_firmware amd:epyc_7513_firmware amd:epyc_7532_firmware amd:epyc_7542_firmware amd:epyc_7543_firmware amd:epyc_7543p_firmware amd:epyc_7552_firmware amd:epyc_7573x_firmware amd:epyc_75f3_firmware amd:epyc_7642_firmware amd:epyc_7643_firmware amd:epyc_7643p_firmware amd:epyc_7662_firmware amd:epyc_7663_firmware amd:epyc_7663p_firmware amd:epyc_7702_firmware amd:epyc_7702p_firmware amd:epyc_7713_firmware amd:epyc_7713p_firmware amd:epyc_7742_firmware amd:epyc_7763_firmware amd:epyc_7773x_firmware References Check your stack JSON