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    CVE-2026-54240

    libde265 is an open source implementation of the h.265 video codec. Versions prior to 1.1.1 use signed 32-bit arithmetic to calculate pixel offsets, allowing a crafted HEVC stream with large image dimensions to trigger an integer overflow and cause out-of-bounds heap reads or writes, potentially disclosing data, corrupting memory, or crashing the decoder. Version 1.1.1 contains a patch.

    Published:Sep 11, 2026
    Last Modified:Sep 14, 2026
    EPS:Sep 11, 2026
    EPSS Score:0.00238
    CVSS Score:7.4

    Affected Products

    Vendor
    Struktur
    Product
    Libde265

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    Related CVEs

    CVE-2026-88373 (CVSS 7.5) — libde265 commit 4d45a6b contains a NULL pointer dereference vulnerability in the NAL parsing path. When de265_…
    CVE-2026-54241 (CVSS 7.4) — libde265 is an open source implementation of the h.265 video codec. Versions prior to 1.1.1 use signed 32-bit …
    CVE-2026-45383 (CVSS 6.9) — libde265 is an open source implementation of the h.265 video codec. Versions prior to 1.0.19 have a heap buffe…
    CVE-2026-45382 (CVSS 6.9) — libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.19, `decoder_context:…
    CVE-2026-49346 (CVSS 7.1) — libde265 is an open source implementation of the h.265 video codec. Prior to version 1.1.0, a crafted H.265 bi…
    CVE-2026-49295 (CVSS 7.1) — libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.20, a crafted H.265 b…
    CVE-2026-49337 (CVSS 4.3) — libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.20, a crafted sequenc…
    CVE-2026-33164 (CVSS 8.7) — libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.17, a malformed H.265…
    CVE-2026-33165 (CVSS 5.5) — libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.17, a crafted HEVC bi…
    CVE-2025-61147 (CVSS 6.2) — strukturag libde265 commit d9fea9d wa discovered to contain a segmentation fault via the component decoder_con…

    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