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    CVE-2026-45382

    libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.19, `decoder_context::decode_slice_unit_tiles` (libde265/decctx.cc:920) reads `pps.CtbAddrRStoTS[ctbAddrRS]` at line 966 where `ctbAddrRS = ctbY * ctbsWidth + ctbX` is computed from PPS-supplied `colBd[]`/`rowBd[]` arrays without validating the result against `CtbAddrRStoTS.size() == sps->PicSizeInCtbsY`. A malformed PPS that passes `set_derived_values` but encodes geometry inconsistent with the SPS produces a `ctbAddrRS` past the allocation, causing a 4-byte heap-buffer-overflow READ. Version 1.0.19 fixes the issue.

    Published:Jul 21, 2026
    Last Modified:Jul 27, 2026
    EPS:Jul 21, 2026
    EPSS Score:0.00253
    CVSS Score:6.9

    Affected Products

    Vendor
    Struktur
    Product
    Libde265

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    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-2026-49346 (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…
    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

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    Integrity
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