CVE-2026-45383 libde265 has a heap buffer overflow (OOB read) in decode_slice_unit_WPP() via out-of-bounds CtbAddrRStoTS access — libde265 <= v1.0.18

libde265 is an open source implementation of the h.265 video codec. Versions prior to 1.0.19 have a heap buffer overflow out-of-bounds READ exists in decodercontext::decodesliceunitWPP in libde265/decctx.cc. When decoding a WPP Wavefront Parallel Processing HEVC slice, ctbAddrRS is computed as...