High severity · published Apr 2, 2023
CVE-2023-20558
Insufficient control flow management in AmdCpmOemSmm may allow a privileged attacker to tamper with the SMM handler potentially leading to an escalation of privileges
8.8
CVSS
0.7%
EPSS
No
On KEV
Description
Insufficient control flow management in AmdCpmOemSmm may allow a privileged attacker to tamper with the SMM handler potentially leading to an escalation of privileges.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AG
Athlon Gold 3150u Firmware · Amd
All versions, or not specified · source: NVD
AS
Athlon Silver 3050u Firmware · Amd
All versions, or not specified · source: NVD
R3
Ryzen 3 2200u Firmware · Amd
before comboam4v2_pi_1.2.0.6c · source: NVD
R3
Ryzen 3 2300u Firmware · Amd
before comboam4v2_pi_1.2.0.6c · source: NVD
R3
Ryzen 3 3200u Firmware · Amd
All versions, or not specified · source: NVD
R3
Ryzen 3 3250u Firmware · Amd
All versions, or not specified · source: NVD
R3
Ryzen 3 3300u Firmware · Amd
All versions, or not specified · source: NVD
R3
Ryzen 3 3300x Firmware · Amd
before comboam4_v2_pi_1.2.0.6c · source: NVD
R3
Ryzen 3 3350u Firmware · Amd
All versions, or not specified · source: NVD
R3
Ryzen 3 3450u Firmware · Amd
All versions, or not specified · source: NVD
R3
Ryzen 3 3500c Firmware · Amd
All versions, or not specified · source: NVD
R3
Ryzen 3 3500u Firmware · Amd
All versions, or not specified · source: NVD
Affected product
AG
Athlon Gold 3150u Firmware
Amd
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