CVE-2026-79607

high

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.

References

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

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-98823

http://xenbits.xen.org/xsa/advisory-514.html

http://www.openwall.com/lists/oss-security/2026/10/13/3

Details

Source: Mitre, NVD

Published: 2026-10-13

Updated: 2026-10-13

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High