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vulnerabilities
Xen Security Advisory 514 v2 (CVE-2026-79607) - Xenstore: Guests can crash xenstored during Live Update
Xen published Security Advisory 514 for CVE-2026-79607, a vulnerability in Xenstore where guests can crash xenstored during live update operations. The issue arises from a state record for Xenstore watches being written with two bytes missing, creating an inconsistent state.
Why it matters: Organizations running Xen hypervisors with Xenstore should evaluate this denial of service exposure and apply patches when available, as guest-initiated crashes of xenstored disrupt virtualization availability.
- Source published
- First seen by Cybersecurity Tracker