CVE-2026-49346
published 2026-06-19CVE-2026-49346: 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…
PriorityP335high7.1CVSS 3.1
AVNACLPRNUIRSUCNILAH
EPSS
0.37%
29.8th percentile
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
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| struktur | libde265 | < 1.1.0 | 1.1.0 |
| strukturag | libde265 | < 1.1.0 | 1.1.0 |
| ubuntu | libde265 | — | — |
CVSS provenance
nvdv3.17.1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
vendor_ubuntu3.3LOW
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Ubuntu
libde265 vulnerabilities
vendor_ubuntu·2026-07-20·CVSS 3.3
CVE-2026-45382 [LOW] libde265 vulnerabilities
Title: libde265 vulnerabilities
Summary: Several security issues were fixed in libde265.
It was discovered that libde265 did not properly manage memory under
certain circumstances. An attacker could possibly use this issue to
cause libde265 to crash, resulting in a denial of service. This issue
only affected Ubuntu 22.04 LTS. (CVE-2023-51792)
It was discovered that libde265 did not properly handle certain
malformed media files, leading to a heap buffer overflow. An attacker
could possibly use this issue to cause libde265 to crash, resulting in
a denial of service. (CVE-2024-38949, CVE-2024-38950)
It was discovered that libde265 did not properly handle certain
malformed input, leading to a segmentation fault. An attacker could
possibly use this issue to cause libde265 to crash, resultin
VulDB
strukturag libde265 up to 1.0.x libde265/image.cc de265_image_get_buffer small integer overflow (GHSA-vv8h-932h-7r86 / EUVD-2026-38080)
vuldb·2026-06-19
CVE-2026-49346 [LOW] strukturag libde265 up to 1.0.x libde265/image.cc de265_image_get_buffer small integer overflow (GHSA-vv8h-932h-7r86 / EUVD-2026-38080)
A vulnerability marked as problematic has been reported in strukturag libde265 up to 1.0.x. This affects the function de265_image_get_buffer of the file libde265/image.cc. Performing a manipulation of the argument small results in integer overflow.
This vulnerability is known as CVE-2026-49346. Remote exploitation of the attack is possible. No exploit is available.
It is suggested to upgrade the affected component.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-06-19
Published