CVE-2026-79607
Fixed in a distro release EPSS <1%CVSS 5.5
During Xenstore live update the state record for a Xenstore watch with specified watch depth is written with two bytes missing. This results in an inconsistent state when reading the state back in the new Xenstore, causing a crash of Xenstore or wrong Xenstore data.
Products: xen
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | xen | no fix |
| Debian 13 | xen | no fix |
| Debian 14 | xen | no fix |
| Ubuntu 16.04 LTS | xen | no fix |
| Ubuntu 18.04 LTS | xen | no fix |
| Ubuntu 20.04 LTS | xen | no fix |
| Ubuntu 22.04 LTS | xen | no fix |
| Ubuntu 24.04 LTS | xen | no fix |
| Ubuntu 26.04 LTS | xen | no fix |
| Ubuntu 26.10 | xen | no fix |
| openSUSE Tumbleweed | xen | 4.22.0_06-1.1 |