CVE-2026-15185
GPAC MP4Box vobsub.c vobsub_read_idx out-of-bounds
- State
- Published
- Severity
- 4.8 Medium
- Published
- Jul 9, 2026
- Updated
- Jul 9, 2026
- Reserved
- Jul 9, 2026
Description
A vulnerability was determined in GPAC 26.03-DEV. This affects the function vobsub_read_idx of the file /src/media_tools/vobsub.c of the component MP4Box. Executing a manipulation of the argument num_langs can lead to out-of-bounds read. The attack needs to be launched locally. The exploit has been publicly disclosed and may be utilized. This patch is called 532097084729a936bcdf6a27c41003f3bd7dc3ff. It is best practice to apply a patch to resolve this issue. Two different commits were applied to fix this issue.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 3.3 Low | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C | VulDB |
| 3.0 | 3.3 Low | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C | VulDB |
| 2.0 | 1.7 Low | AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
GPACn/a |
|
References
- VDB-377111 | GPAC MP4Box vobsub.c vobsub_read_idx out-of-boundsvdb-entrytechnical-description
- VDB-377111 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-15185 | CVE Analysis and Reportthird-party-advisory
- Submit #851214 | GPAC GPAC 26.03-DEV Out-of-Bounds Readthird-party-advisory
- https://github.com/gpac/gpac/issues/3611exploitissue-tracking
- https://github.com/gpac/gpac/commit/aa0fb77b82e51b159a2024c440cdf6b571b14d81patch
- https://github.com/gpac/gpac/commit/532097084729a936bcdf6a27c41003f3bd7dc3ffpatch
- https://github.com/gpac/gpac/product
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