VulnerabilityModified
CVE-2021-26386
A malicious or compromised UApp or ABL may be used by an attacker to issue a malformed system call to the Stage 2 Bootloader potentially leading to corrupt memory and code execution.
HIGH 7.8EPSS 0.27%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.27%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A malicious or compromised UApp or ABL may be used by an attacker to issue a malformed system call to the Stage 2 Bootloader potentially leading to corrupt memory and code execution.
- 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
- 0.27% probability · 19th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- amd/ryzen 3 2200u firmware · amd/ryzen 3 2300u firmware · amd/ryzen 3 3100 firmware · amd/ryzen 3 3300g firmware · amd/ryzen 3 3300x firmware · amd/ryzen 3 5125c firmware · amd/ryzen 3 5400u firmware · amd/ryzen 3 5425c firmware · amd/ryzen 3 5425u firmware · amd/ryzen 5300g firmware · amd/ryzen 5300ge firmware · amd/ryzen 5600g firmware · amd/ryzen 5600ge firmware · amd/ryzen 5600x firmware · amd/ryzen 5700g firmware · amd/ryzen 5700ge firmware · amd/ryzen 5800x firmware · amd/ryzen 5800x3d firmware · amd/ryzen 5900x firmware · amd/ryzen 5950x firmware · +40 more
- Source
- psirt@amd.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.