Skip to content
Fencer Vulns
low 1.9

CVE-2021-26345 json

Failure to validate the value in APCB may allow a privileged attacker to tamper with the APCB token to force an out-of-bounds memory read p…

published 2023-11-14 2 y ago modified 2026-06-17 4 mo ago also EUVD-2021-13151

cvss
1.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits
0
none known

Summary

Failure to validate the value in APCB may allow a privileged attacker to tamper with the APCB token to force an out-of-bounds memory read potentially resulting in a denial of service.

Patch / fix

  • amd epyc_7h12_firmware romepi_1.0.0.f
  • amd epyc_7f72_firmware romepi_1.0.0.f
  • amd epyc_7f52_firmware romepi_1.0.0.f
  • amd epyc_7f32_firmware romepi_1.0.0.f
  • amd epyc_7742_firmware romepi_1.0.0.f
  • amd epyc_7702p_firmware romepi_1.0.0.f
  • amd epyc_7702_firmware romepi_1.0.0.f
  • amd epyc_7662_firmware romepi_1.0.0.f
  • amd epyc_7642_firmware romepi_1.0.0.f
  • amd epyc_7552_firmware romepi_1.0.0.f
  • amd epyc_7542_firmware romepi_1.0.0.f
  • amd epyc_7532_firmware romepi_1.0.0.f
  • amd epyc_7502p_firmware romepi_1.0.0.f
  • amd epyc_7502_firmware romepi_1.0.0.f
  • amd epyc_7452_firmware romepi_1.0.0.f
  • amd epyc_7402p_firmware romepi_1.0.0.f
  • amd epyc_7402_firmware romepi_1.0.0.f
  • amd epyc_7352_firmware romepi_1.0.0.f
  • amd epyc_7302p_firmware romepi_1.0.0.f
  • amd epyc_7302_firmware romepi_1.0.0.f
  • kernel-firmware SLE Module for Basesystem 15 SP5, SLE Micro 5.5, openSUSE Leap 15.5 20230724-150500.3.9.1
  • kernel-firmware SLE Module for Basesystem 15 SP4, SLE Micro 5.4, SLE Micro 5.3 +3 more 20220509-150400.4.25.1
  • kernel-firmware SLES for SAP 12 SP5, SLES 12 SP5 20190618-5.34.1
  • kernel-firmware SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Micro 5.2 +4 more 20210208-150300.4.19.1
  • kernel-firmware SLES for SAP 15 SP2, SLES for SAP 15 SP1, SLES 15 SP2-LTSS +3 more 20200107-150100.3.40.1

suse advisories SUSE-SU-2024:2376-1SUSE-SU-2023:4665-1SUSE-SU-2023:4664-1SUSE-SU-2023:4660-1SUSE-SU-2023:4655-1SUSE-SU-2023:4654-1

  • kernel-firmware-ath12k openSUSE Tumbleweed 20250206-1.1
  • kernel-firmware openSUSE Tumbleweed 20231128-1.1

opensuse advisories openSUSE-SU-2025:14772-1openSUSE-SU-2024:13475-1

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 1.9 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
NVD 3.1 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Affected products

  • AMD 2nd Gen AMD EPYC™ Processors
  • AMD 3rd Gen AMD EPYC™ Processors
  • AMD 4th Gen AMD EPYC™ Processors
  • AMD AMD EPYC™ Embedded 7002
  • AMD AMD EPYC™ Embedded 7003

Classification

Weakness

References

Sources

Fencer Vulns 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.