Local privilege escalation via undersized FUSE buffer
Published Sep 2, 2025 · Updated Feb 26, 2026
Out-of-bounds write in Google Android 13 and 14 MediaProvider allows local users to escalate privileges through an oversized FUSE request. FuseDaemon.cpp sized its zero_addr buffer for a fixed 128 KiB read even though one FUSE request can span up to 256 pages, allowing the larger operation to write beyond the buffer. Exploitation requires low-privileged local code on an affected device, needs no user interaction, and grants elevated privileges.
Summary
What happened
Out-of-bounds write in Google Android 13 and 14 MediaProvider allows local users to escalate privileges through an oversized FUSE request. FuseDaemon.cpp sized its zero_addr buffer for a fixed 128 KiB read even though one FUSE request can span up to 256 pages, allowing the larger operation to write beyond the buffer. Exploitation requires low-privileged local code on an affected device, needs no user interaction, and grants elevated privileges.
The record
- CVE
- CVE-2024-49730
- Published
- Sep 2, 2025
- Updated
- Feb 26, 2026
- Vendor
- Google Cloud
- Product
- Android
- Classifications
- CWE-787, T1068
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 2, 2025CVE publishedPublication date reported by the CVE source.
- Feb 26, 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=13
- Affected versionversion=14
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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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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