CVE-2026-79607 — Xenstore: Guests can crash xenstored during Live Update

CVE-2026-79607

Xenstore: Guests can crash xenstored during Live Update PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Xen / Xen	unknown consult Xen advisory XSA-514

CWE

No CWE identifiers supplied.

References

https://xenbits.xenproject.org/xsa/advisory-514.html

ADP enrichment

CVE

No English description supplied.

http://xenbits.xen.org/xsa/advisory-514.html
http://www.openwall.com/lists/oss-security/2026/10/13/3

CISA-ADP

No English description supplied.

No references supplied.