UBUNTU-CVE-2026-64832

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    UBUNTU-CVE-2026-64832

    Published: 22 Jul 2026Last Modified: 10 Sept 2026
    Upstream:
    CVE-2026-64832

    Summary:

    Details: FFmpeg versions 4.4 through 8.1.2 contain a double-free vulnerability in the NVIDIA NVDEC hardware decoder within libavcodec/nvdec.c that allows attackers to trigger memory corruption by supplying a crafted video file. When no decoder surfaces remain, the ff_nvdec_start_frame_sep_ref error path frees memory via nvdec_fdd_priv_free while the calling layer subsequently frees the same frame description data, resulting in a double-free of the underlying decoder context in any FFmpeg-based application using NVDEC hardware-accelerated decoding.

    References: https://ubuntu.com/security/CVE-2026-64832, https://www.cve.org/CVERecord?id=CVE-2026-64832, https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23664, https://ubuntu.com/security/notices/USN-8716-1, https://ubuntu.com/security/notices/USN-8716-2

    Affected packages

    Package

    Name: libav

    Purl: pkg:deb/ubuntu/libav?arch=source&distro=esm-infra-legacy%2Ftrusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    6:0.8.7-1ubuntu2

    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
    UBUNTU-CVE-2026-64832 | CVE-DB