CVE detail
CVE-2026-23555
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.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 13.9 · diversity 11.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
3 source links · newest first
- http://xenbits.xen.org/xsa/advisory-481.htmlxenbits.xen.org
No excerpt available.
Vendor Advisoryxenbits.xen.orgMar 23, 2026, 7:16 AM - http://www.openwall.com/lists/oss-security/2026/03/17/7www.openwall.com
No excerpt available.
Exploitwww.openwall.comMar 23, 2026, 7:16 AM - https://xenbits.xenproject.org/xsa/advisory-481.htmlxenbits.xenproject.org
No excerpt available.
Vendor Advisoryxenbits.xenproject.orgMar 23, 2026, 7:16 AM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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