CVE-2026-58846: Use After Free
Published Sep 8, 2026
·Updated
In kvmiommumapsg of iommu.c, there is a possible use after free due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Event History
Sep 8, 2026
CVE Published
via MITRE·06:06 PM
Data Sourced
via MITRE·06:06 PM
DescriptionWeakness
Frequently Asked Questions
1
What level of access does an attacker need to exploit this issue?
Exploitation requires local access. No additional execution privileges are needed, and no user interaction is required.
2
What is the potential impact of successful exploitation?
A successful exploit could allow local escalation of privilege through a use-after-free condition in kvm_iommu_map_sg of iommu.c.