Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.
VOLERION
Volerion Security Research

NOT DEFERRED DATABASE

VULNERABILITIES

CVE-2026-23556 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

When oxenstored is tearing a domain down, the node data is cleaned up but the usage counts are leaked. When the domain ID is eventually reused, the new domain can create fewer nodes before beeing deemed to be over quota.

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:2.8 LOWVector:CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
http://www.openwall.com/lists/oss-security/2026/04/28/10 CVEAdvisoryMailing ListRemedy
http://xenbits.xen.org/xsa/advisory-483.html CVEAdvisoryRemedyVendor
https://xenbits.xen.org/xsa/advisory-483.html [email protected]AdvisoryRemedyVendor

Weakness Enumeration

CWE-IDCWE NameSource
CWE-281Improper Preservation of Permissions[email protected]

Affected Products

ProductVersions
Xen
>= 4.17, < 4.18

CPE

  • cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*
  • cpe:2.3:o:xen:xen:*:*:*:*:*:x86:*:*
  • cpe:2.3:a:xen:xen:*:*:*:*:*:*:*:*

Remediation

  • Patch: xsa483-4.17.patchmoderate effort
  • Patch: xsa483.patchmoderate effort
  • Patch: xsa483-xapi.patchmoderate effort
  • Mitigation:low effort

    Perform a xenstore live update.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-23556
NVD Published Date:
Jul 9, 2026
NVD Last Modified:
Jul 9, 2026
Source:
[email protected]
CVE-2026-23556 Details - Not Deferred