FEDORA-2026-A9EA805BC1: Security update for 15 packages

FEDORA-2026-A9EA805BC1, released September 17, 2026, fixes 3 CVEs across 15 products. 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 3 CVEs

Patch now 0
                                Urgent 0
                                High 1
                                Routine 2

Fixed package versions

Product	Release	Fixed in
xen	Fedora 43	4.20.4-2.fc43
xen-debuginfo	Fedora 43	4.20.4-2.fc43
xen-debugsource	Fedora 43	4.20.4-2.fc43
xen-devel	Fedora 43	4.20.4-2.fc43
xen-doc	Fedora 43	4.20.4-2.fc43
xen-hypervisor	Fedora 43	4.20.4-2.fc43
xen-libs	Fedora 43	4.20.4-2.fc43
xen-libs-debuginfo	Fedora 43	4.20.4-2.fc43
xen-licenses	Fedora 43	4.20.4-2.fc43
xen-ocaml	Fedora 43	4.20.4-2.fc43
xen-ocaml-debuginfo	Fedora 43	4.20.4-2.fc43
xen-ocaml-devel	Fedora 43	4.20.4-2.fc43
xen-ocaml-devel-debuginfo	Fedora 43	4.20.4-2.fc43
xen-runtime	Fedora 43	4.20.4-2.fc43
xen-runtime-debuginfo	Fedora 43	4.20.4-2.fc43

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
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
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-2026-62437	xen: When guests are terminated, various pieces of cleanup need carrying out	6.5	0.0010	None reported

Also fixes CVE-2026-79602

SUSE-SU-2026:4090-1
xen on sles 15.7
DEBIAN-CVE-2026-79602
xen on Debian 12.15 (bookworm), Debian 13.5 (trixie), Debian 14

Vendor advisory

https://bodhi.fedoraproject.org/updates/FEDORA-2026-a9ea805bc1

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