CVE-2026-49346

HIGH EPSS 13.4%
Published Jun 19, 20261w ago · Modified Jun 23, 20261w ago
7.1 CVSS 3.1
High
Find Similar
Published Jun 19, 2026 1w ago
Last Modified Jun 23, 2026 1w 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.

CVSS Details

Base Score
7.1
Exploitability
2.8
Impact
4.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity Low
Availability High

Threat Intelligence

EPSS Exploit Probability
13.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-190 Integer Overflow or Wraparound Numeric Error

References 2

  • github.com https://github.com/strukturag/libde265/commit/8a1b5cf212f78e1c77cb46eb5d56e492a9336eb8
  • github.com https://github.com/strukturag/libde265/security/advisories/GHSA-vv8h-932h-7r86

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.