Vulnerability Description
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 `decoder_context::decode_slice_unit_WPP()` in `libde265/decctx.cc`. When decoding a WPP (Wavefront Parallel Processing) HEVC slice, `ctbAddrRS` is computed as `ctbRow * ctbsWidth` inside the entry-point loop. If the PPS/SPS headers are crafted so that this value exceeds `pps.CtbAddrRStoTS.size()`, the subsequent array access `pps.CtbAddrRStoTS[ctbAddrRS]` reads past the end of the allocated vector, triggering a heap-buffer-overflow confirmed by AddressSanitizer. Version 1.0.19 patches the issue.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-45383?
CVE-2026-45383 is a documented vulnerability. 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 `decoder_context::decode_slice_unit_WPP()` in `l...
How severe is CVE-2026-45383?
CVSS scoring is not yet available for CVE-2026-45383. Check NVD for updates.
Is there a patch for CVE-2026-45383?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.