CVE-2026-62437 Affecting xen-tools package, versions <4.20.4_04-150700.3.46.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.1% (1st percentile)

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  • Snyk IDSNYK-SLES157-XENTOOLS-19779289
  • published14 Sept 2026
  • disclosed8 Sept 2026

Introduced: 8 Sep 2026

CVE-2026-62437  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 xen-tools to version 4.20.4_04-150700.3.46.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen-tools package and not the xen-tools package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

When guests are terminated, various pieces of cleanup need carrying out. The cleaning up of PCI devices which were assigned to guests, and the associated removal of tracking structures for IRQs used by the devices occurs relatively early in the process. Unfortunately after that point the guest about to be terminated could cause its device model (DM) to re-establish such tracking structures, by having it bind one or more IRQs anew. While some of those tracking structures would still be cleaned up later on, at least one would not be.

CVSS Base Scores

version 3.1