CVE-2021-46772

LOW
3.9
CVSS Score
Published: August 13, 2024 at 04:50 PM UTC
Updated: June 17, 2026 at 04:15 AM UTC
10 products affected across 1 vendorRyzen 5000 SeriesRyzen 3000 SeriesRyzen Threadripper 3000 Series

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Severity
LOW3.9
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

Insufficient input validation in the ABL may allow a privileged attacker with access to the BIOS menu or UEFI shell to tamper with the structure headers in SPI ROM causing an out of bounds memory read and write, potentially resulting in memory corruption or denial of service.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
Vendor states this is fixed in CezannePI-FP6 1.0.0.E (unaffected)
Vendor states this is fixed in CezannePI-FP6 1.0.0.E (unaffected)
Vendor states this is fixed in CezannePI-FP6 1.0.0.E (unaffected)
Vendor states this is fixed in ComboAM4V2 1.2.0.A (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.9LOWAMD
Attack Vector
LOCAL
Complexity
HIGH
Privileges
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-125CWE-787

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