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CVE record · CVE-2023-20555

Insufficient input validation in CpmDisplayFeatureSmm may allow an attacker to corrupt SMM memory by overwriting an arbitrary bit in an attacker-controlled pointer potentially leading to arbitrary co…

No CVSS scoreEPSS 0.0032 · 25th percentile

Published by the CVE Program (CNA: AMD) at 8 Aug 2023, 17:07 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
AMD Ryzen™ 3000 Series Desktop Processors “Matisse” AM4 Package name: AGESA
  • affected various
Other versions: affected
AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4 Package name: AGESA
  • affected various
Other versions: affected
AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics “Cezanne” AM4 Package name: AGESA
  • affected various
Other versions: affected
AMD Ryzen™ 7000 Series Processors “Raphael” Package name: AGESA
  • affected various
Other versions: affected
AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics “Picasso” Package name: AGESA
  • affected various
Other versions: affected
AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics “Renoir” FP5 Package name: AGESA
  • affected various
Other versions: affected
AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Dali”/”Dali” FP5 Package name: AGESA
  • affected various
Other versions: affected
AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Pollock” Package name: AGESA
  • affected various
Other versions: affected
AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Picasso” Package name: AGESA
  • affected various
Other versions: affected
AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics “Renoir” FP6 Package name: AGESA
  • affected various
Other versions: affected
AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne” Package name: AGESA
  • affected various
Other versions: affected
AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Cezanne” Package name: AGESA
  • affected various
Other versions: affected
AMD Ryzen™ 6000 Series Mobile Processors "Rembrandt" Package name: AGESA
  • affected various
Other versions: affected
AMD Ryzen™ 7030 Series Mobile Processors “Barcelo” Package name: AGESA
  • affected various
Other versions: affected
AMD Ryzen™ 7020 Series Mobile Processors “Mendocino” Package name: AGESA
  • affected various
Other versions: affected
Identifiers
CVE-2023-20555
CNA
AMD
Tags
Published
8 Aug 2023
Updated
24 Oct 2024

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

No source has published a CVSS score for this record yet.

  • CISA KEV Not listed.
  • EPSS 0.0032, the 25th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 8 Aug 2023. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.