CVE-2026-40677 PUBLISHED

Assigner: AMD
Reserved: 14.04.2026 Published: 12.06.2026 Updated: 12.06.2026

The use of insecure HTTP transport within AMD optional tools could allow an attacker to conduct a man-in-the-middle attack, potentially leading to arbitrary code execution.

Metrics

CVSS 4.0

CVSS Vector: 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
CVSS Score: 7.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	Present	Availability	High	Availability	None
Privileges Required	None
User Interaction	Passive

CVSS 4.0

Product Status

Vendor	AMD
Product	AMD Management Console (AMC)
Versions	Default: affected Version 14.0.0 is unaffected

Vendor	AMD
Product	AMD Ryzen™ Master
Versions	Default: affected Version 2.14.3 is unaffected

Vendor	AMD
Product	AMD µProf
Versions	Default: affected Version 5.3 is unaffected

References

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-9027.html

Problem Types

CWE-1428 Reliance on HTTP instead of HTTPS CWE