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NVD description
[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To manage the system, sysctl and platform operations are used by the control domain or a possible Xenstore domain. Some of these operations may not be executed in parallel, so a system-wide lock each is used. The way those locks are acquired is, however, not providing any fairness. Furthermore, with XSM/Flask in use, the lock acquire will, for some operations, occur ahead of any permission checking. The sysctl issue is CVE-2026-62426. The platform-op issue is CVE-2026-62427.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
Xen Project vulnerability CVE-2026-62427 exposes critical permission issues in sysctl and platform operations, allowing remote exploitation. https://ift.tt/FM1U5OJ
Post summary
The post announces the CVE‑2026‑62427 vulnerability in Xen Project, highlighting that it permits remote exploitation via critical permission flaws in sysctl and platform operations, but no PoC, exploit, or patch is disclosed.