CVE-2026-62426
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
[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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Xen | Xen | consult Xen advisory XSA-499 | unknown |
Weaknesses
Workarounds
There is no known mitigation.
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
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