What is CVE-2021-26388?

CVE-2021-26388 is a medium-severity vulnerability in Amd Athlon™ Series, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2022-05-11.

How severe is CVE-2021-26388?

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

Out-of-bounds Read in Amd Athlon™ Series

CVE-2021-26388

Improper validation of the BIOS directory may allow for searches to read beyond the directory table copy in RAM, exposing out of bounds memory contents, resulting in a potential 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

Amd Athlon™ Series — versions various
Amd Epyc_7232p
Amd Epyc_7232p_firmware
Amd Epyc_7252
Amd Epyc_7252_firmware
Amd Epyc_7262
Amd Epyc_7262_firmware
Amd Epyc_7272
Amd Epyc_7272_firmware
Amd Epyc_7282

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

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

Frequently asked questions

What is CVE-2021-26388?: CVE-2021-26388 is a medium-severity vulnerability in Amd Athlon™ Series, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2022-05-11.
How severe is CVE-2021-26388?: Medium severity. CVSS v3 base score is 5.5 out of 10.