Veille CVE
CVE-2026-42489
5.3 MoyenneDescription
[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To create and manage guests, domctl operations are used by the control domain, a possible Xenstore domain, or by a domain controlling a particular guest. Some of these operations may not be executed in parallel, so a system-wide lock is used. The way that lock is acquired is, however, not providing any fairness. This is CVE-2026-42489. Furthermore, with XSM/Flask in use, the lock acquire will, for some operations, occur ahead of any permission checking. This is CVE-2026-42490.
Produits concernés
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 5.3 Moyenne | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H |