CVE-2021-26386 — Out-of-bounds Write in AMD Athlon Series

CWE-787 — Out-of-bounds Write3 documents3 sources
Severity
7.8HIGHNVD
EPSS
0.0%
top 85.81%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
AMD Athlon SeriesAMD Ryzen Series
Timeline
PublishedMay 12
Latest updateMay 13

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 vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages2 packages

▶CVEListV5amd/ryzen_seriesvarious
▶CVEListV5amd/athlon_seriesvarious

🔴Vulnerability Details

2
GHSA
GHSA-q5m8-56v3-xhv7: 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 co↗2022-05-13
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CVEList
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 co↗2022-05-12
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CVE-2021-26386 — Out-of-bounds Write in AMD | cvebase