CVE-2026-62432 Affecting xen-tools package, versions <4.16.7_12-150400.4.89.3


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.25% (15th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-SLES154-XENTOOLS-18516078
  • published4 Aug 2026
  • disclosed3 Aug 2026

Introduced: 3 Aug 2026

CVE-2026-62432  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 xen-tools to version 4.16.7_12-150400.4.89.3 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:15.4 relevant fixed versions and status.

The EVTCHNOP_expand_array hypercall checks for whether FIFO event channels are enabled, but without holding the correct lock. It can race with EVTCHNOP_reset, resulting in dereferencing a NULL pointer.

CVSS Base Scores

version 3.1