CVE-2026-62431 | The logic to handle periodic Viridian STIMERs performs a div… | CVSS 7.5 HIGH

Description

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

Metadata

CVE ID: CVE-2026-62431
State: PUBLISHED
Assigner: XEN
Reserved: 2026-07-14 10:28 UTC
Published: 2026-07-28 12:32 UTC
Last updated: 2026-07-28 16:33 UTC
Primary CWE: CWE-369
CWE-369 Divide By Zero
Vendor / Product: Xen / Xen
Sources: cve.org · NVD

Severity & Metrics

7.5 HIGH CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC — CISA Coordinator

Exploitation: none
Automatable: yes
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
Xen	Xen	—	consult Xen advisory XSA-504

Weakness (CWE)

CWE	Source	Description
CWE-369	adp	CWE-369 Divide By Zero

CVSS scores (1)

Score	Severity	Version	Source	Vector
7.5	HIGH	3.1	adp	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References (1)

https://xenbits.xenproject.org/xsa/advisory-504.html