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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2026-23557

Xenstored DoS via XS_RESET_WATCHES command

Description

Any guest can cause xenstored to crash by issuing a XS_RESET_WATCHES command within a transaction due to an assert() triggering. In case xenstored was built with NDEBUG #defined nothing bad will happen, as assert() is doing nothing in this case. Note that the default is not to define NDEBUG for xenstored builds even in release builds of Xen.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Xen Xen

Default version status: unknown

  • consult Xen advisory XSA-484unknown

References