Process crash via SVG node use-after-free
Published Jun 15, 2026 · Updated Jun 15, 2026
Heap use-after-free in the MPEG-4 LASeR/SVG scene path in GPAC MP4Box 2.4 allows local users to crash the process via a crafted MP4 file. During teardown, gf_svg_node_del frees an SVG node created by gf_svg_create_node, and scene-graph reset reaches the freed allocation again through gf_node_unregister and gf_svg_node_del. Exploitation requires a user or workflow to process attacker-controlled input with the -svg option; the demonstrated consequence is a reproducible segmentation fault, not code execution.
Summary
What happened
Heap use-after-free in the MPEG-4 LASeR/SVG scene path in GPAC MP4Box 2.4 allows local users to crash the process via a crafted MP4 file. During teardown, gf_svg_node_del frees an SVG node created by gf_svg_create_node, and scene-graph reset reaches the freed allocation again through gf_node_unregister and gf_svg_node_del. Exploitation requires a user or workflow to process attacker-controlled input with the -svg option; the demonstrated consequence is a reproducible segmentation fault, not code execution.
The record
- CVE
- CVE-2025-55650
- Published
- Jun 15, 2026
- Updated
- Jun 15, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-416, T1499, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 15, 2026CVE publishedPublication date reported by the CVE source.
- Jun 15, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
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Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
- 10_poc.mp4proof of concept · demonstrated
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Technologies
Your stack
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Your stack
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