---
id: CVE-2026-79607
title: |-
  During Xenstore live update the state record for a Xenstore watch with
  specified watch depth is written with two bytes missing
summary: |-
  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 Xe…
severity: none
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T17:17:46.570'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-79607'
references:
  - url: 'https://xenbits.xenproject.org/xsa/advisory-514.html'
    label: security@xen.org
  - url: 'http://www.openwall.com/lists/oss-security/2026/10/13/3'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://xenbits.xen.org/xsa/advisory-514.html'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
ingestedAt: '2026-10-13T16:35:46.744Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.