VulnerabilityModified
CVE-2023-20555
Insufficient input validation in CpmDisplayFeatureSmm may allow an attacker to corrupt SMM memory by overwriting an arbitrary bit in an attacker-controlled pointer potentially leading to arbitrary code execution in SMM.
HIGH 7.8EPSS 0.32%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.32%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Insufficient input validation in CpmDisplayFeatureSmm may allow an attacker to corrupt SMM memory by overwriting an arbitrary bit in an attacker-controlled pointer potentially leading to arbitrary code execution in SMM.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.32% probability · 25th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- amd/ryzen 3 3300 firmware · amd/ryzen 3 3300x firmware · amd/ryzen 5 3600 firmware · amd/ryzen 5 3600x firmware · amd/ryzen 7 3700 firmware · amd/ryzen 7 3700x firmware · amd/ryzen 9 3800x firmware · amd/ryzen 9 3850x firmware · amd/ryzen 9 5950x firmware · amd/ryzen 9 5900x firmware · amd/ryzen 9 5900 firmware · amd/ryzen 9 pro 5945 firmware · amd/ryzen 7 5800x3d firmware · amd/ryzen 7 5800x firmware · amd/ryzen 7 5800 firmware · amd/ryzen 7 5700x firmware · amd/ryzen 7 pro 5845 firmware · amd/ryzen 5 5600x3d firmware · amd/ryzen 5 5600x firmware · amd/ryzen 5 5600 firmware · +40 more
- Source
- psirt@amd.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.