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Fencer Intel
medium 5.5

CVE-2021-26388 json

Improper validation of the BIOS directory may allow for searches to read beyond the directory table copy in RAM, exposing out of bounds mem…

published 4y ago modified 4mo ago also EUVD-2021-13194

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits
0
none known

Summary

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.

Patch / fix

  • amd epyc_7232p_firmware romepi-sp3_1.0.0.d
  • amd epyc_7302p_firmware romepi-sp3_1.0.0.d
  • amd epyc_7402p_firmware romepi-sp3_1.0.0.d
  • amd epyc_7502p_firmware romepi-sp3_1.0.0.d
  • amd epyc_7702p_firmware romepi-sp3_1.0.0.d
  • amd epyc_7252_firmware romepi-sp3_1.0.0.d
  • amd epyc_7262_firmware romepi-sp3_1.0.0.d
  • amd epyc_7272_firmware romepi-sp3_1.0.0.d
  • amd epyc_7282_firmware romepi-sp3_1.0.0.d
  • amd epyc_7302_firmware romepi-sp3_1.0.0.d
  • amd epyc_7352_firmware romepi-sp3_1.0.0.d
  • amd epyc_7402_firmware romepi-sp3_1.0.0.d
  • amd epyc_7452_firmware romepi-sp3_1.0.0.d
  • amd epyc_7502_firmware romepi-sp3_1.0.0.d
  • amd epyc_7532_firmware romepi-sp3_1.0.0.d
  • amd epyc_7542_firmware romepi-sp3_1.0.0.d
  • amd epyc_7552_firmware romepi-sp3_1.0.0.d
  • amd epyc_7642_firmware romepi-sp3_1.0.0.d
  • amd epyc_7662_firmware romepi-sp3_1.0.0.d
  • amd epyc_7702_firmware romepi-sp3_1.0.0.d
  • kernel-firmware SLE Module for Basesystem 15 SP4, openSUSE Leap 15.4 20220509-150400.4.5.1
  • kernel-firmware SLES for SAP 15, SLES 15-LTSS, SLE High Performance Computing 15-LTSS +1 more 20191118-150000.3.42.1
  • kernel-firmware SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +3 more 20190618-5.25.2
  • kernel-firmware SLE Module for Basesystem 15 SP3, SLE Micro 5.2, SLE Micro 5.1 +1 more 20210208-150300.4.10.1
  • kernel-firmware SLES for SAP 15 SP2, SLES for SAP 15 SP1, SLES 15 SP2-LTSS +12 more 20200107-150100.3.31.1

suse advisories SUSE-SU-2022:1923-1SUSE-SU-2022:1847-1SUSE-SU-2022:1846-1SUSE-SU-2022:1840-1SUSE-SU-2022:1751-1

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Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C

Affected products

  • AMD EPYC™ Processors
  • AMD Ryzen™ Series
  • AMD Athlon™ Series

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.