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    CVE-2026-107678

    FFmpeg through 9.0.2 contains a stack exhaustion vulnerability in av_encryption_init_info_free() in libavutil/encryption_info.c, which recursively frees AVEncryptionInitInfo linked lists built by the MOV demuxer's mov_read_pssh(). Attackers can supply a crafted MP4 file with tens of thousands of small pssh boxes to exhaust the stack and crash the process, while also causing quadratic CPU consumption.

    Published:Oct 8, 2026
    Last Modified:Oct 8, 2026
    EPS:Oct 8, 2026
    EPSS Score:
    CVSS Score:4.7

    Affected Products

    Vendor
    Ffmpeg
    Product
    Ffmpeg

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-107698 (CVSS 5.3) — FFmpeg before 7.1.4 and 8.0.x before 8.0.2 contains a server-side request forgery vulnerability in ff_rtsp_con…
    CVE-2026-107697 (CVSS 5.3) — FFmpeg before 8.1.3 contains a protection mechanism failure in the HLS demuxer that allows attackers to bypass…
    CVE-2026-107696 (CVSS 7.1) — FFmpeg through 9.0.2 contains an infinite loop vulnerability in ff_rtsp_connect() in libavformat/rtsp.c that f…
    CVE-2026-107695 (CVSS 7.1) — FFmpeg before 8.1.3 contains an infinite loop vulnerability in the HLS demuxer that allows remote attackers to…
    CVE-2026-107677 (CVSS 5.7) — FFmpeg through 9.0.2 contains a denial of service vulnerability in the DASH demuxer that allows attackers to t…
    CVE-2026-107676 (CVSS 4.8) — FFmpeg through 9.0.2 contains an uninitialized memory disclosure vulnerability in av_dynamic_hdr_plus_to_t35()…
    CVE-2026-107675 (CVSS 6) — FFmpeg through 9.0.2 contains a missing host key verification vulnerability in the libssh-based sftp protocol …
    CVE-2026-107660 (CVSS 6.3) — FFmpeg before 8.1.3 and 9.x before 9.0.2 contains an improper certificate validation vulnerability in tls_open…
    CVE-2026-96611 (CVSS 6.9) — FFmpeg before 9.0 has a signed integer overflow in libavformat/mov.c. In mov_read_ispe(), uint32_t width/heigh…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High