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    CVE-2021-25804

    A NULL-pointer dereference in "Open" in avi.c of VideoLAN VLC Media Player 3.0.11 can a denial of service (DOS) in the application.

    Published:Jul 26, 2021
    Last Modified:Nov 21, 2024
    EPS:Jul 26, 2021
    EPSS Score:0.01001
    CVSS Score:7.5

    Affected Products

    Vendor
    Videolan
    Product
    Vlc Media Player

    Exploits

    https://github.com/DShankle/VLC_CVE-2021-25804_Analysis

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-73324 (CVSS 6.9) — VLC media player copies an RTSP response line into a fixed buffer without guaranteeing termination and then tr…
    CVE-2026-56711 (CVSS 8.6) — VLC media player computes the size of a picture buffer with 32-bit arithmetic and allocates from the wrapped r…
    CVE-2025-51602 (CVSS 4.8) — mmstu.c in VideoLAN VLC media player before 3.0.22 allows an out-of-bounds read and denial of service via a cr…
    CVE-2024-46461 (CVSS 8) — VLC media player 3.0.20 and earlier is vulnerable to denial of service through an integer overflow which could…
    CVE-2023-46814 (CVSS 7.8) — A binary hijacking vulnerability exists within the VideoLAN VLC media player before 3.0.19 on Windows. The uni…
    CVE-2023-47359 (CVSS 9.8) — Videolan VLC prior to version 3.0.20 contains an incorrect offset read that leads to a Heap-Based Buffer Overf…
    CVE-2023-47360 (CVSS 7.5) — Videolan VLC prior to version 3.0.20 contains an Integer underflow that leads to an incorrect packet length.…
    CVE-2022-41325 (CVSS 7.8) — An integer overflow in the VNC module in VideoLAN VLC Media Player through 3.0.17.4 allows attackers, by trick…
    CVE-2021-25803 (CVSS 7.1) — A buffer overflow vulnerability in the vlc_input_attachment_New component of VideoLAN VLC Media Player 3.0.11 …
    CVE-2021-25802 (CVSS 7.1) — A buffer overflow vulnerability in the AVI_ExtractSubtitle component of VideoLAN VLC Media Player 3.0.11 allow…

    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