What is CVE-2023-20555?

CVE-2023-20555 is a high-severity vulnerability in Amd Athlon_3015ce, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2023-08-08.

How severe is CVE-2023-20555?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Amd Athlon_3015ce

CVE-2023-20555

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 code execution in SMM.

Vulnerability class: Buffer Overflow

EPSS: 0.003 (21.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Amd Athlon_3015ce
Amd Athlon_3015ce_firmware
Amd Athlon_3015e
Amd Athlon_3015e_firmware
Amd Athlon_gold_3150c
Amd Athlon_gold_3150c_firmware
Amd Athlon_gold_3150g
Amd Athlon_gold_3150ge
Amd Athlon_gold_3150ge_firmware
Amd Athlon_gold_3150g_firmware

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

psirt@amd.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2023-20555?: CVE-2023-20555 is a high-severity vulnerability in Amd Athlon_3015ce, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2023-08-08.
How severe is CVE-2023-20555?: High severity. CVSS v3 base score is 7.8 out of 10.