CVE-2026-33165

ADVISORY - nist

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.

EPSS Score⁠: 0.00232 (0.143)

Common Weakness Enumeration (CWE)

ADVISORY - nist

CWE-787⁠

Out-of-bounds Write

Impacted images

Advisories

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