Local privilege escalation via VP9 bounds check
Published Sep 15, 2026 · Updated Sep 15, 2026
An out-of-bounds read in Android's Vp9DecEndOfStream affects Pixel-family devices and allows local users to gain elevated privileges. The function in vp9hwd_output.cc applies an incorrect bounds check while ending a VP9 decode stream, allowing a read beyond the intended buffer. Exploitation requires local access but no additional execution privileges or user interaction; Android platform mitigations can constrain the resulting privilege gain.
Summary
What happened
An out-of-bounds read in Android's Vp9DecEndOfStream affects Pixel-family devices and allows local users to gain elevated privileges. The function in vp9hwd_output.cc applies an incorrect bounds check while ending a VP9 decode stream, allowing a read beyond the intended buffer. Exploitation requires local access but no additional execution privileges or user interaction; Android platform mitigations can constrain the resulting privilege gain.
The record
- CVE
- CVE-2026-58699
- Published
- Sep 15, 2026
- Updated
- Sep 15, 2026
- Vendor
- Product
- Android
- Classifications
- T1068
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 15, 2026CVE publishedPublication date reported by the CVE source.
- Sep 15, 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
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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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