cvedb.io
CVE-2026-33165
MEDIUM · CVSS 5.5
EPSS exploitation probability: 0%
Published 2026-03-20T21:17:16.453 · Last modified 2026-06-17T10:37:03.743

Summary

libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.17, a crafted HEVC bitstream causes an out-of-bounds heap write confirmed by AddressSanitizer. The trigger is a stale ctb_info.log2unitSize after an SPS change where PicWidthInCtbsY and PicHeightInCtbsY stay constant but Log2CtbSizeY changes, causing set_SliceHeaderIndex to index past the allocated image metadata array and write 2 bytes past the end of a heap allocation. This issue has been patched in version 1.0.17.

Affected products

struktur — libde265

Does this affect you?

Add your gear to cvedb and we'll alert you only when struktur ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.