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Fencer Vulns
high 7.5

CVE-2022-23820 json

Failure to validate the AMD SMM communication buffer may allow an attacker to corrupt the SMRAM potentially leading to arbitrary code execu…

published 2023-11-14 2 y ago modified 2026-06-17 4 mo ago also EUVD-2022-28749

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits
0
none known

Summary

Failure to validate the AMD SMM communication buffer may allow an attacker to corrupt the SMRAM potentially leading to arbitrary code execution.

Patch / fix

  • 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

0.70% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • AMD Ryzen™ 3000 series Desktop Processors “Matisse"
  • AMD AMD Ryzen™ 5000 Series Desktop Processors “Vermeer”
  • AMD AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics “Cezanne”
  • AMD AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics “Picasso” AM4
  • AMD AMD Ryzen™ Threadripper™ 2000 Series Processors “Colfax”
  • AMD AMD Ryzen™ Threadripper™ 3000 Series Processors “Castle Peak” HEDT
  • AMD AMD Ryzen™ Threadripper™ PRO Processors “Castle Peak” WS SP3
  • AMD AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors “Chagall” WS
  • AMD AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Pollock”
  • AMD AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics “Picasso” FP5
  • AMD AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics “Renoir” FP6
  • AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne”
  • AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Cezanne”
  • AMD AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics "Rembrandt"
  • AMD AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics “Rembrandt-R”
  • AMD AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics “Barcelo”
  • AMD AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics “Barcelo-R”
  • AMD 3rd Gen AMD EPYC™ Processors
  • AMD AMD EPYC™ Embedded 7003

Classification

Weakness
  • CWE-20 Improper Input Validation

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.