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CVE-2021-26316

CVE.org · Published

Historical CVEsJSONAI instructions

Record status
Published
Identifier year (not publication year)
2021
Source publication
Source updated
Imported by cveboard
Source snapshot
cve_2026-10-24_midnight_baseline ·

Plain text

CNA source text (English)

Failure to validate the communication buffer and communication service in the BIOS may allow an attacker to tamper with the buffer resulting in potential SMM (System Management Mode) arbitrary code execution.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

Ryzen 5000 Series

Vendor
AMD
Product
Ryzen 5000 Series
Platforms
  • x86
Default status
affected
Package
AGESA
Ryzen 5000 Series · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
various affectedUnavailableUnavailableUnavailableNone listed

Ryzen 2000 Series

Vendor
AMD
Product
Ryzen 2000 Series
Platforms
  • x86
Default status
unaffected
Package
AGESA
Ryzen 2000 Series · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
various affectedUnavailableUnavailableUnavailableNone listed

Ryzen 3000 Series

Vendor
AMD
Product
Ryzen 3000 Series
Platforms
  • x86
Default status
unaffected
Package
AGESA
Ryzen 3000 Series · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
various affectedUnavailableUnavailableUnavailableNone listed

1st Gen EPYC

Vendor
AMD
Product
1st Gen EPYC
Platforms
  • x86
Default status
unaffected
Package
AGESA
1st Gen EPYC · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
various affectedUnavailableUnavailableUnavailableNone listed

2nd Gen EPYC

Vendor
AMD
Product
2nd Gen EPYC
Platforms
  • x86
Default status
unaffected
Package
AGESA
2nd Gen EPYC · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
Various affectedUnavailableUnavailableUnavailableNone listed

3rd Gen EPYC

Vendor
AMD
Product
3rd Gen EPYC
Platforms
  • x86
Default status
unaffected
Package
AGESA
3rd Gen EPYC · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
various affectedUnavailableUnavailableUnavailableNone listed