Local privilege escalation via misaligned IOMMU mappings
Published Sep 8, 2026 · Updated Sep 8, 2026
Out-of-bounds access in Android kernel pKVM IOMMU code allows local users to elevate privileges through misaligned mapping requests. The map, unmap, and scatter-gather paths accepted page-misaligned IOVA or physical addresses without rejecting them before mapping operations. The path is limited to affected arm64 devices using Protected KVM; exploitation needs local access but no user interaction.
Summary
What happened
Out-of-bounds access in Android kernel pKVM IOMMU code allows local users to elevate privileges through misaligned mapping requests. The map, unmap, and scatter-gather paths accepted page-misaligned IOVA or physical addresses without rejecting them before mapping operations. The path is limited to affected arm64 devices using Protected KVM; exploitation needs local access but no user interaction.
The record
- CVE
- CVE-2026-58941
- Published
- Sep 8, 2026
- Updated
- Sep 8, 2026
- Vendor
- Google Cloud
- Product
- Android
- Classifications
- CWE-20, T1404
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 8, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=Android kernel
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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