CVE-2026-33165

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 ctbinfo.log2unitSize after an SPS change where PicWidthInCtbsY and PicHeightInCtbsY stay...

UBUNTU-CVE-2026-33165

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 ctbinfo.log2unitSize after an SPS change where PicWidthInCtbsY and PicHeightInCtbsY stay...

CVE-2026-33165 heap out-of-bounds write in libde265 1.0.16

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 ctbinfo.log2unitSize after an SPS change where PicWidthInCtbsY and PicHeightInCtbsY stay...

CVE-2026-33165

libde265 prior to v1.0.17 is affected by a heap out-of-bounds write triggered by a crafted HEVC bitstream. The root cause is a stale ctb_info.log2unitSize after an SPS change, where PicWidthInCtbsY and PicHeightInCtbsY remain constant while Log2CtbSizeY changes, causing set_SliceHeaderIndex to in...