cvedb.io
CVE-2026-49346
HIGH · CVSS 7.1
EPSS exploitation probability: 0%
Published 2026-06-19T21:17:01.847 · Last modified 2026-06-26T19:17:38.463

Summary

libde265 is an open source implementation of the h.265 video codec. Prior to version 1.1.0, a crafted H.265 bitstream with large SPS dimensions and 16-bit bit depth causes a signed integer overflow in `de265_image_get_buffer()` (`libde265/image.cc:128`). The overflow wraps the plane allocation size to a small value (~1 KB), but the subsequent `fill_image()` call computes the real size using `size_t`, writing ~4 GB into the undersized heap buffer. Version 1.1.0 patches the issue.

Affected products

struktur — libde265

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References

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