CVE-2026-62431

Severity CVSS v4.0:

Pending analysis

Type:

CWE-369 Divide By Zero

Publication date:

28/07/2026

Last modified:

28/07/2026

Description

The logic to handle periodic Viridian STIMERs performs a division with an<br /> unchecked user-controlled divisor value, that can be set to zero to cause a #DE<br /> fault.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

7.50

Severity 3.x

HIGH

References to Advisories, Solutions, and Tools

https://xenbits.xenproject.org/xsa/advisory-504.html
http://www.openwall.com/lists/oss-security/2026/07/28/20
http://xenbits.xen.org/xsa/advisory-504.html