Local privilege escalation via reused undersized NPU queues
Published Jun 2, 2025 · Updated Jun 3, 2025
Out-of-bounds write in the Samsung Exynos NPU driver allows local users on Exynos 1480 and 2400 devices to gain kernel privileges. On a second npu_queue_prepare call with larger user-supplied counts, npu_queue_alloc reuses smaller queues and npu_queue_mapping writes beyond kernel memory. A malicious Android application in the untrusted_app SELinux context needs no special privileges and can use the corruption for local privilege escalation.
Summary
What happened
Out-of-bounds write in the Samsung Exynos NPU driver allows local users on Exynos 1480 and 2400 devices to gain kernel privileges. On a second npu_queue_prepare call with larger user-supplied counts, npu_queue_alloc reuses smaller queues and npu_queue_mapping writes beyond kernel memory. A malicious Android application in the untrusted_app SELinux context needs no special privileges and can use the corruption for local privilege escalation.
The record
- CVE
- CVE-2025-23099
- Published
- Jun 2, 2025
- Updated
- Jun 3, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, T1404
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 2, 2025CVE publishedPublication date reported by the CVE source.
- Jun 3, 2025Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
Affected products and versions are unavailable in this record.
Attacks
What attackers are doing with it
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Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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