What is CVE-2021-26378?

CVE-2021-26378 is a medium-severity vulnerability in Amd Athlon™ Series, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2022-05-11.

How severe is CVE-2021-26378?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Buffer overflow in Amd Athlon™ Series

CVE-2021-26378

Insufficient bound checks in the System Management Unit (SMU) may result in access to an invalid address space that could result in denial of service.

Vulnerability class: Buffer Overflow

EPSS: 0.002 (11.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

psirt@amd.com (x_refsource_MISC, Vendor Advisory)
psirt@amd.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-26378?: CVE-2021-26378 is a medium-severity vulnerability in Amd Athlon™ Series, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2022-05-11.
How severe is CVE-2021-26378?: Medium severity. CVSS v3 base score is 5.5 out of 10.