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    CVE-2026-49295

    libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.20, a crafted H.265 bitstream can cause an out-of-bounds array write in `decoder_context::process_reference_picture_set()` (`libde265/decctx.cc:1376`). The root cause is a missing aggregate bound check on predicted short-term reference picture set entries. Individual list sizes are validated, but the combined count after predicted RPS construction can exceed the 16-entry `PocStFoll` array, writing at index 16. Version 1.0.20 patches the issue.

    Published:Jun 19, 2026
    Last Modified:Jun 24, 2026
    EPS:Jun 19, 2026
    EPSS Score:0.00184
    CVSS Score:7.1

    Affected Products

    Vendor
    Struktur
    Product
    Libde265

    Exploits

    https://github.com/strukturag/libde265/security/advisories/GHSA-g2rg-wj66-w594https://github.com/strukturag/libde265/security/advisories/GHSA-g2rg-wj66-w594

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    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-2026-49337 (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…
    CVE-2024-38949 (CVSS 6.5) — Heap Buffer Overflow vulnerability in Libde265 v1.0.15 allows attackers to crash the application via crafted p…
    CVE-2024-38950 (CVSS 6.5) — Heap Buffer Overflow vulnerability in Libde265 v1.0.15 allows attackers to crash the application via crafted p…
    CVE-2023-49467 (CVSS 8.8) — Libde265 v1.0.14 was discovered to contain a heap-buffer-overflow vulnerability in the derive_combined_bipredi…

    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