5.5
Medium
CVE-2026-33165 libde265 is an open source implementation of the h.265 video codec
Description
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 and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| libde265 1.0 | earliest → < 1.0.17 | 1.0.17 |
Other CVEs of libde265
The 9 CVEs of libde265 →
CVE-2026-54241
libde265 is an open source implementation of the h.265 video codec
7.4
High
CVE-2026-54240
libde265 is an open source implementation of the h.265 video codec
7.4
High
CVE-2026-45383
libde265 is an open source implementation of the h.265 video codec
6.9
Medium
CVE-2026-45382
libde265 is an open source implementation of the h.265 video codec
6.9
Medium