VULNERABILITY INTELLIGENCE

CVE-2026-23557

CVSS score6.5 MEDIUM
EPSS probability0.16%
CISA KEVNot currently listed
Published2026-05-19
Last modified2026-10-14
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

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.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-617

Primary references