CVE-2026-79610 Affecting xen-tools package, versions <4.16.7_16-150400.4.95.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.18% (8th percentile)

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  • Snyk IDSNYK-SLES154-XENTOOLS-20969042
  • published15 Oct 2026
  • disclosed13 Oct 2026

Introduced: 13 Oct 2026

NewCVE-2026-79610  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 xen-tools to version 4.16.7_16-150400.4.95.1 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:15.4 relevant fixed versions and status.

XSA-501 was about issues with v1 -> v2 and v2 -> v1 changes racing certain other grant table operations. Sadly a v2 -> v1 -> v2 change has yet another effect which wasn't accounted for: During the first change, status pages would be freed. During the second change they would be allocated again. Hence across the full pair of change the addresses of the status pages may change, rendering stale previously calculated pointers into the status array.

CVSS Base Scores

version 3.1