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Debian · Security advisory · May 19, 2026
Debian · Security advisory · May 19, 2026DEBIAN-CVE-2026-23558: xen security update
DEBIAN-CVE-2026-23558, released May 19, 2026, fixes 1 CVE in xen. None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
1
None rated Critical
Exploited
0
None reported
Highest CVSS
7.8
Base score, 0 to 10
Highest EPSS
0.0012
1st percentile
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| xen | Debian 12.15 (bookworm) | 4.17.7-0+deb12u1 |
| xen | Debian 13.5 (trixie) | 4.20.3+127-gc42374a105-0+deb13u1 |
| xen | Debian 14 | 4.20.3+127-gc42374a105-1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-23558 | xen: The adjustments made for XSA-379 as well as those subsequently becoming XSA-387 still left a race window, when a HVM... | 7.8 | 0.0012 | None reported |
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