High severity · published Sep 2, 2026
CVE-2023-20576
Insufficient Verification of Data Authenticity in AGESA™ may allow an attacker to update SPI ROM data potentially resulting in denial of service or privilege escalation
7.7
CVSS
0.1%
EPSS
No
On KEV
Description
Insufficient Verification of Data Authenticity in AGESA™ may allow an attacker to update SPI ROM data potentially resulting in denial of service or privilege escalation.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AR
AMD Ryzen™ 3000 Series Desktop Processors · AMD
All versions, or not specified · source: vendor
AR
AR
AMD Ryzen™ 5000 Series Desktop Processors · AMD
All versions, or not specified · source: vendor
AR
AR
AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics · AMD
All versions, or not specified · source: vendor
AR
AMD Ryzen™ 7000 Series Processors · AMD
All versions, or not specified · source: vendor
AR
AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics · AMD
All versions, or not specified · source: vendor
AR
AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics · AMD
All versions, or not specified · source: vendor
AR
AMD Ryzen™ 7040 Series Processors with Radeon™ Graphics · AMD
All versions, or not specified · source: vendor
AR
AMD Ryzen™ 7045 Series Mobile Processors · AMD
All versions, or not specified · source: vendor
AR
AMD Ryzen™ Embedded 5000 · AMD
All versions, or not specified · source: vendor
AR
AMD Ryzen™ Embedded V3000 · AMD
All versions, or not specified · source: vendor
Affected product
AR
AMD Ryzen™ 3000 Series Desktop Processors
AMD
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