CVEvulnerability
CVE-2026-23557
6.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-05-19
- Last modified
- 2026-10-14
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 6.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- Weaknesses
- CWE-617
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 configurations
• xen xen (>= 4.2.0)
Related
Weakness · CWE (1)
- CWE-617 Reachable Assertion weakness
References
- https://xenbits.xenproject.org/xsa/advisory-484.html Patch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/04/28/11 Mailing List, Patch, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-484.html Patch, Vendor Advisory