CVEvulnerability

CVE-2026-62427

8.8 HIGH Published 2026-07-28 Modified 2026-07-28 Official page ↗
Status
Deferred
Published
2026-07-28
Last modified
2026-07-28
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-284, CWE-305

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.

Related

Weakness · CWE (2)

  • CWE-284 Improper Access Control weakness
  • CWE-305 Authentication Bypass by Primary Weakness weakness

References