FFmpeg versions 2.1 through 8.1.2 contains a heap buffer overflow vulnerability in the VobSub subtitle demuxer that allows attackers to corrupt adjacent heap memory by supplying a malicious .sub/.idx subtitle file declaring more distinct stream IDs than the fixed-size array bounds in libavformat/mpeg.c. Attackers can craft a subtitle file with excessive distinct stream IDs to trigger unbounded writes beyond the vobsub->q[] array boundary via ff_subtitles_queue_insert(), potentially achieving arbitrary code execution in any application using FFmpeg's VobSub demuxer.
CVSS Score
8.7
EPSS Score
0.003
Published
2026-07-22
FFmpeg before 8.1 has an integer overflow and resultant out-of-bounds write via CENC (Common Encryption) subsample data to libavformat/mov.c.
CVSS Score
4.9
EPSS Score
0.001
Published
2026-04-16
An out-of-bounds read in the read_global_param() function (libavcodec/av1dec.c) of FFmpeg v8.0.1 allows attackers to cause a Denial of Service (DoS) via a crafted input.
CVSS Score
7.5
EPSS Score
0.003
Published
2026-04-13
An improper resource deallocation and closure vulnerability in the tools/zmqsend.c component of FFmpeg v8.0.1 allows attackers to cause a Denial of Service (DoS) via supplying a crafted input file.
CVSS Score
7.5
EPSS Score
0.004
Published
2026-04-13
A heap buffer overflow in the av_bprint_finalize() function of FFmpeg v8.0.1 allows attackers to cause a Denial of Service (DoS) via a crafted input.
CVSS Score
7.5
EPSS Score
0.005
Published
2026-04-13
A vulnerability, which was classified as critical, was found in FFmpeg up to 7.1. This affects the function ff_aac_search_for_tns of the file libavcodec/aacenc_tns.c of the component AAC Encoder. The manipulation leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.
CVSS Score
5.3
EPSS Score
0.006
Published
2025-02-23
FFmpeg git-master before commit d5873b was discovered to contain a memory leak in the component libavutil/mem.c.
CVSS Score
6.5
EPSS Score
0.004
Published
2025-02-18
FFmpeg git-master before commit d5873b was discovered to contain a memory leak in the component libavutil/iamf.c.
CVSS Score
6.5
EPSS Score
0.003
Published
2025-02-18
A vulnerability was found in FFmpeg up to 7.1. It has been rated as problematic. Affected by this issue is the function mov_read_trak of the file libavformat/mov.c of the component MOV Parser. The manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The patch is identified as 43be8d07281caca2e88bfd8ee2333633e1fb1a13. It is recommended to apply a patch to fix this issue.
CVSS Score
4.8
EPSS Score
0.003
Published
2025-02-17
A flaw was found in FFmpeg's HLS demuxer. This vulnerability allows bypassing unsafe file extension checks and triggering arbitrary demuxers via base64-encoded data URIs appended with specific file extensions.
CVSS Score
4.7
EPSS Score
0.004
Published
2025-01-06