cvedb.io
CVE-2026-23555
HIGH · CVSS 7.1
EPSS exploitation probability: 0%
Published 2026-03-23T07:16:07.330 · Last modified 2026-06-17T10:21:46.473

Summary

Any guest issuing a Xenstore command accessing a node using the (illegal) node path "/local/domain/", will crash xenstored due to a clobbered error indicator in xenstored when verifying the node path. Note that the crash is forced via a failing assert() statement in xenstored. In case xenstored is being built with NDEBUG #defined, an unprivileged guest trying to access the node path "/local/domain/" will result in it no longer being serviced by xenstored, other guests (including dom0) will still be serviced, but xenstored will use up all cpu time it can get.

Affected products

xen — xen

Does this affect you?

Add your gear to cvedb and we'll alert you only when xen ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.