CVE-2026-62432 Affecting xen-libs package, versions <4.18.5_20-150600.3.53.3


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.21% (12th percentile)

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  • Snyk IDSNYK-SLES156-XENLIBS-18468465
  • published30 Jul 2026
  • disclosed29 Jul 2026

Introduced: 29 Jul 2026

NewCVE-2026-62432  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 xen-libs to version 4.18.5_20-150600.3.53.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen-libs package and not the xen-libs package as distributed by SLES. See How to fix? for SLES:15.6 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