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    CVE-2026-95121

    An issue in mp4v2 2.0.0 allows an attacker to execute arbitrary code via the MP4RtpAtom::ReadHntiType() in src/atom_rtp.cpp. A specially crafted MP4 file can cause an undersized rtp atom to produce a near-2^64 allocation size through an unchecked offset subtraction

    Published:Oct 13, 2026
    Last Modified:Oct 17, 2026
    EPS:Oct 13, 2026
    EPSS Score:0.00135
    CVSS Score:7.8

    Affected Products

    Vendor
    Techsmith
    Product
    Mp4v2

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-190 Integer Overflow or Wraparound

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    Related CVEs

    CVE-2026-95122 (CVSS 7.5) — mp4v2 2.0.0 contains a NULL pointer dereference vulnerability in MP4File::GenerateTracks() in src/mp4file.cpp.…
    CVE-2018-14446 (CVSS 8.8) — MP4Integer32Property::Read in atom_avcC.cpp in MP4v2 2.1.0 allows remote attackers to cause a denial of servic…
    CVE-2018-14403 (CVSS 9.8) — MP4NameFirstMatches in mp4util.cpp in MP4v2 2.0.0 mishandles substrings of atom names, leading to use of an in…
    CVE-2018-14379 (CVSS 8.8) — MP4Atom::factory in mp4atom.cpp in MP4v2 2.0.0 incorrectly uses the MP4ItemAtom data type in a certain case wh…
    CVE-2018-14326 (CVSS 8.8) — In MP4v2 2.0.0, there is an integer overflow (with resultant memory corruption) when resizing MP4Array for the…
    CVE-2018-14325 (CVSS 8.8) — In MP4v2 2.0.0, there is an integer underflow (with resultant memory corruption) when parsing MP4Atom in mp4at…
    CVE-2018-14054 (CVSS 9.8) — A double free exists in the MP4StringProperty class in mp4property.cpp in MP4v2 2.0.0. A dangling pointer is f…

    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