CVE-2021-46758
MEDIUM
6.1
CVSS Score
Published: November 14, 2023 at 06:54 PM UTC
Updated: June 17, 2026 at 04:15 AM UTC
128 products affected across 1 vendorRyzen 5 5600HS FirmwareRyzen 5 5600U FirmwareRyzen 5 5600H Firmware
Using Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics “Cezanne” by AMD?
Get instant alerts when new vulnerabilities affect Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics “Cezanne” - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM6.1
Exploit prediction
EPSS 0.3%
Description
Insufficient validation of SPI flash addresses in the ASP (AMD Secure Processor) bootloader may allow an attacker to read data in memory mapped beyond SPI flash resulting in a potential loss of availability and integrity.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < renoirpi-fp6_1.0.0.a
Affected range stops below renoirpi-fp6_1.0.0.a, so it looks safe — our inference, not a vendor statement
v < cezannepi-fp6_1.0.0.c
Affected range stops below cezannepi-fp6_1.0.0.c, so it looks safe — our inference, not a vendor statement
amd-ryzen-3-5125c (same device)
v < comboam4v2_pi_1.2.0.8
Affected range stops below comboam4v2_pi_1.2.0.8, so it looks safe — our inference, not a vendor statement
v < comboam4v2_pi_1.2.0.8
Affected range stops below comboam4v2_pi_1.2.0.8, so it looks safe — our inference, not a vendor statement
amd-ryzen-3-5300ge (same device)
v < cezannepi-fp6_1.0.0.c
Affected range stops below cezannepi-fp6_1.0.0.c, so it looks safe — our inference, not a vendor statement
amd-ryzen-3-5300u (same device)
v < cezannepi-fp6_1.0.0.c
Affected range stops below cezannepi-fp6_1.0.0.c, so it looks safe — our inference, not a vendor statement
amd-ryzen-3-5400u (same device)
v < cezannepi-fp6_1.0.0.c
Affected range stops below cezannepi-fp6_1.0.0.c, so it looks safe — our inference, not a vendor statement
amd-ryzen-3-5425u (same device)
v < rembrandtpi-fp7_1.0.0.5
Affected range stops below rembrandtpi-fp7_1.0.0.5, so it looks safe — our inference, not a vendor statement
v < cezannepi-fp6_1.0.0.c
Affected range stops below cezannepi-fp6_1.0.0.c, so it looks safe — our inference, not a vendor statement
amd-ryzen-3-pro-7330u (same device)
v < renoirpi-fp6_1.0.0.a
Affected range stops below renoirpi-fp6_1.0.0.a, so it looks safe — our inference, not a vendor statement
amd-ryzen-5-4500u (same device)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
Vendor Advisory
Source: [email protected]
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4002CVSS
- Attack Vector
- PHYSICAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card