DEBIAN-CVE-2026-79608: xen security update

DEBIAN-CVE-2026-79608, released October 19, 2026, fixes 1 CVE in xen. None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent

CVEs closed

1 rated Critical

Exploited

None reported

Highest CVSS

9.8

Base score, 0 to 10

Highest EPSS

0.0034

27th percentile

Fixed package versions

Product	Release	Fixed in
xen	Debian 13.5 (trixie)	4.20.4+39-gf1e1321c87-0+deb13u1
xen	Debian 14	4.20.4+39-gf1e1321c87-1

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
Urgent	CVE-2026-79608	xen: The workaround for XSA-433 (Zenbleed, CVE-2023-20593) was later re-worked to better integrate with other manipulation...	9.8	0.0034	None reported

Also fixes CVE-2026-79608

SUSE-SU-2026:4942-1
xen on sles 15.7

Vendor advisory

https://security-tracker.debian.org/tracker/CVE-2026-79608

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