Process crash via six-channel PCM remapping overflow
Published Jan 15, 2026 · Updated Jan 15, 2026
Heap-based buffer overflow in the GPAC 2.4.0 Vorbis decoder allows attackers to crash the process by opening a crafted OGG file. In vorbis_to_intern(), six-channel remapping starts channel five at data[6], one element past the first PCM frame, then writes every sample at that offset. A victim must process a six-channel Vorbis stream through vorbisdec; the demonstrated outcome is a deterministic heap overwrite and crash, not code execution.
Summary
What happened
Heap-based buffer overflow in the GPAC 2.4.0 Vorbis decoder allows attackers to crash the process by opening a crafted OGG file. In vorbis_to_intern(), six-channel remapping starts channel five at data[6], one element past the first PCM frame, then writes every sample at that offset. A victim must process a six-channel Vorbis stream through vorbisdec; the demonstrated outcome is a deterministic heap overwrite and crash, not code execution.
The record
- CVE
- CVE-2025-70310
- Published
- Jan 15, 2026
- Updated
- Jan 15, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-122, T1204.002, T1499.004
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 15, 2026CVE publishedPublication date reported by the CVE source.
- Jan 15, 2026Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
- GPAC six-channel Vorbis heap-overflow proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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