CVE Vulnerability

CVE-2021-26340

A malicious hypervisor in conjunction with an unprivileged attacker process inside an SEV/SEV-ES guest VM may fail to flush the Translation Lookaside Buffer (TLB) resulting in unexpected behavior inside the virtual machine (VM).

3.6 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

Scope

8.4 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2 / Impact : 5.8

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1023 Vendor Advisory
Configurations

Configuration 1
Information

Published : 2021-12-10 10:15

Updated : 2021-12-15 07:43

NVD link : CVE-2021-26340

Mitre link : CVE-2021-26340

Products Affected

Amd

Epyc 7401p

CWE
NVD-CWE-noinfo