SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-26369

A malicious or compromised UApp or ABL may be used by an attacker to send a malformed system call to the bootloader, resulting in out-of-bounds memory accesses.

HIGH 7.8EPSS 0.23%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.23%). 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 send a malformed system call to the bootloader, resulting in out-of-bounds memory accesses.

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
0.23% probability · 14th percentile
CISA KEV
Not listed
Weakness
CWE-119
Affected
amd/radeon software · amd/athlon 3050ge firmware · amd/athlon 3150g firmware · amd/athlon 3150ge firmware · 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 5 2500u firmware · amd/ryzen 5 2600 firmware · amd/ryzen 5 2600h firmware · amd/ryzen 5 2600x firmware · amd/ryzen 5 3400g firmware · amd/ryzen 5 3450g firmware · amd/ryzen 5 3600 firmware · +30 more
Source
psirt@amd.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.