CVE-2026-79607

EUVD-2026-98823
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
---
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 5.88%
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Debian Releases
Debian Product
Codename
xen
bookworm
vulnerable
bookworm (security)
vulnerable
forky
vulnerable
sid
vulnerable
trixie
vulnerable
trixie (security)
vulnerable
Vulnerability Media Exposure
References
https://xenbits.xenproject.org/xsa/advisory-514.html
http://www.openwall.com/lists/oss-security/2026/10/13/3
http://xenbits.xen.org/xsa/advisory-514.html