CVE-2026-62431

Viridian STIMER division by zero

Published: Jul 28, 2026Updated: Jul 28, 2026 Sources: CVE List NVDCWE-369

7.5HIGH

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:NConfidentiality

None

I:NIntegrity

None

A:HAvailability

High

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Weaknesses

CWE-369

Affected Products

Xen

oss-project·GBaka xapi, qemu

XenOn-prem

Cloud & SaaS / virtualization

Exploitability

Workaround Available

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References

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

xenbits.xenproject.org

http://www.openwall.com/lists/oss-security/2026/07/28/20

openwall.com

http://xenbits.xen.org/xsa/advisory-504.html

xenbits.xen.org

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