Linux · openSUSE Leap · Security advisory · September 2, 2026

OPENSUSE-SU-2026:21738-1: libvirt security update

OPENSUSE-SU-2026:21738-1, released September 2, 2026, fixes 5 CVEs in libvirt (version 11.4.0-160000.5.1). None of them is reported as exploited. Patch Radar priority: High.

High
CVEs closed
5
None rated Critical
Exploited
0
None reported
Highest CVSS
7.8
Base score, 0 to 10
Highest EPSS
0.0018
7th percentile

Priority of the 5 CVEs

Patch now 0 Urgent 0 High 2 Routine 3

Fixed package versions

ProductReleaseFixed in
libvirtopensuse-leap 16.011.4.0-160000.5.1

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
High CVE-2026-18917 Libvirt: integer overflow in nodegetfreepages rpc handler leading to heap buffer overflow7.8 0.0018 None reported
High CVE-2026-63622 libvirt: A flaw was found in libvirt7.8 0.0014 None reported
Routine CVE-2026-61477 Libvirt: libvirt: newline injection in network xml dns txt/srv fields allows dnsmasq config directive injection2.3 0.0016 None reported
Routine CVE-2026-77159 Libvirt: unsafe chown in qemutpmemulatorpreparehost() allows arbitrary file ownership change via symlink5.5 0.0016 None reported
Routine CVE-2026-63623 Libvirt: information disclosure via world-readable storage volume images during clone/convert5.5 0.0010 None reported
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