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CVE intelligence

CVE-2026-79602

Vulnerability intelligence

Published Sep 8, 2026Sources checked Oct 27, 2026
8.8HIGHCVSS out of 10
What this means

Review the available evidence

CVE-2026-79602 and is rated High severity with a CVSS score of 8.8. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Citrix Security Bulletins guidance

Vendor revision: Sep 8, 2026
Vendor remediation details

We have pushed updates to both the Early Access and Normal update channels of each of XenServer 8.4 and XenServer 9. We recommend that customers update to the latest version from their chosen channel following the instructions at https://docs.xenserver.com/en-us/xenserver/8/update or https://docs.xenserver.com/en-us/xenserver/9/update We have also published an updated Terraform provider, version 0.3.0. We recommend that customers using the XenServer Terraform provider upgrade to that version, either by using standard Terraform tooling or by downloading the updated version directly from https://github.com/xenserver/terraform-provider-xenserver/releases.

CISA KEVNot listedBased on the latest collected catalog
EPSS0.1%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview

What is CVE-2026-79602?

A guest with a PCI device assigned that has at least a BAR on the IO port space can trigger a BUG() in Xen.

Source: NVD