CVE-2026-79607
Received
Received - Intake
Xenstore Memory Corruption via Incomplete Watch State Update
Vulnerability report for CVE-2026-79607, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-13
Last updated on: 2026-10-13
Assigner: Xen Project
Description
Description
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.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| xen | xs_tools | * |
| xen | xen | From 4.22 (inc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
