CVE-2026-49346 - libde265 has a heap buffer overflow in de265_image_get_buffer via SPS dimension integer overflow

CVE-2026-49346 - libde265 has a heap buffer overflow in de265_image_get_buffer via SPS dimension integer overflow

https://cvefeed.io/rssfeed/latest.atom / Fri, 06/19/2026 - 23:45
CVE ID :CVE-2026-49346
Published : June 19, 2026, 8:12 p.m. | 1 hour, 27 minutes ago
Description :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.
Severity: 0.0 | NA
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