Linux · SUSE Linux Enterprise · Security advisory · November 11, 2026

SUSE-SU-2026:5140-1: xen security update

SUSE-SU-2026:5140-1, released November 11, 2026, fixes 9 CVEs in xen (version 4.18.6_03-150600.3.56.1). None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

8.8

Base score, 0 to 10

Highest EPSS

0.0022

12th percentile

Priority of the 9 CVEs

Patch now 0
                                Urgent 0
                                High 3
                                Routine 6

Fixed package versions

Product	Release	Fixed in
xen	sles 15.6	4.18.6_03-150600.3.56.1

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-79610	xen: grant-table: double version change race (bsc#1283322).	8.8	0.0015	None reported
High	CVE-2026-79602	xen: A guest with a PCI device assigned that has at least a BAR on the IO port space can trigger a BUG() in Xen.	8.8	0.0013	None reported
High	CVE-2026-79609	xen: x86: XPTI may break on huge-memory systems (bsc#1283321).	8.8	0.0011	None reported
Routine	CVE-2026-79603	xen: x86 PV guests can free memory pages while still keeping a stale TLB entry pointing to them	4.3	0.0022	None reported
Routine	CVE-2026-79611	xen: VMX: VMentry failure with branch tracing and blocked states (bsc#1283323).	5.5	0.0016	None reported
Routine	CVE-2026-102700	xen: gnttab: cache-flush handling may cause page reference leak (bsc#1283325).	4.7	0.0015	None reported
Routine	CVE-2026-102703	xen: CVE-2026-102704: arbitrary read/write via grant copy (bsc#1288663).	4.4	0.0014	None reported
Routine	CVE-2026-102704	xen: CVE-2026-102703, arbitrary read/write via grant copy (bsc#1288663).	4.4	0.0014	None reported
Routine	CVE-2026-62437	xen: When guests are terminated, various pieces of cleanup need carrying out	6.5	0.0010	None reported

Also fixes CVE-2026-79610

SUSE-SU-2026:4942-1
xen on sles 15.7
DEBIAN-CVE-2026-79610
xen on Debian 12.15 (bookworm), Debian 13.5 (trixie), Debian 14

Vendor advisory

https://osv.dev/vulnerability/SUSE-SU-2026:5140-1

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