CVE-2026-62427

[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.

Score
CVSS 3.1 8.8 High
Status
Deferred - security@xen.org
Published
2026-07-28
Last modified
2026-07-28
Weaknesses
CWE-284, CWE-305

Affected products

References

 
 
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