CVE-2022-42326 - CVE House
Back to Database
Status published Unknown CVE-2022-42326

Xenstore: Guests can create arbitrary number of nodes via transactions...

Vulnerability Description

Xenstore: Guests can create arbitrary number of nodes via transactions T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] In case a node has been created in a transaction and it is later deleted in the same transaction, the transaction will be terminated with an error. As this error is encountered only when handling the deleted node at transaction finalization, the transaction will have been performed partially and without updating the accounting information. This will enable a malicious guest to create arbitrary number of nodes.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2022-42326

Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • {'credit_data': {'description': {'description_data': [{'lang': 'eng', 'value': 'This issue was discovered by Julien Grall of Amazon.'}]}}}

References

More from Xen

View All →
CVE-2025-58151
varstored: TOCTOU issues with mapped guest memory
Critical 9.4
CVE-2025-58150
x86: buffer overrun with shadow paging + tracing
Unknown 0
CVE-2025-58149
Incorrect removal of permissions on PCI device unplug
Unknown 0
CVE-2025-58148
x86: Incorrect input sanitisation in Viridian hypercalls
Unknown 0
CVE-2025-58147
x86: Incorrect input sanitisation in Viridian hypercalls
Unknown 0

Affected Vendor

Affected Software

xen
Vulnerable Versions:
consult Xen advisory XSA-421

Timeline

Official Publish: November 1st, 2022
Last Modified: May 5th, 2025
Added to House: July 21st, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.