Man-in-the-Middle (MitM) attack in AMD products - CVE-2026-40677
Published: June 22, 2026
Vulnerability identifier: #VU135012
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-40677
CWE-ID: CWE-300
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: AMD
Affected software:
AMD Ryzen Master
AMD µProf
AMD Management Console (AMC)
AMD Ryzen Master
AMD µProf
AMD Management Console (AMC)
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a man-in-the-middle (MitM) attack.
The vulnerability exists due to use of insecure HTTP transport within AMD optional tools. A remote attacker can perform a man-in-the-middle (MitM) attack and execute arbitrary code on the target system.
How to mitigate CVE-2026-40677
Install updates from vendor's website.