What is CVE-2021-26336?

CVE-2021-26336 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 2021-11-16.

How severe is CVE-2021-26336?

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

Buffer overflow in Amd Athlon™ Series

CVE-2021-26336

Insufficient bounds checking in System Management Unit (SMU) may cause invalid memory accesses/updates that could result in SMU hang and subsequent failure to service any further requests from other components.

Vulnerability class: Buffer Overflow

EPSS: 0.002 (11.4th 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)

Frequently asked questions

What is CVE-2021-26336?: CVE-2021-26336 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 2021-11-16.
How severe is CVE-2021-26336?: Medium severity. CVSS v3 base score is 5.5 out of 10.