CVE-2026-49295

HighCVSS 7.1/10Last modified Jun 26, 2026

Description

libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.20, a crafted H.265 bitstream can cause an out-of-bounds array write in `decoder_context::process_reference_picture_set()` (`libde265/decctx.cc:1376`). The root cause is a missing aggregate bound check on predicted short-term reference picture set entries. Individual list sizes are validated, but the combined count after predicted RPS construction can exceed the 16-entry `PocStFoll` array, writing at index 16. Version 1.0.20 patches the issue.

Metrics

CVSS 3.1 7.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

Weakness enumeration

CWE-787

Affected software

No affected versions have been published.

Timeline

Published: Jun 19, 2026
Last modified: Jun 26, 2026
NVD status: Analyzed

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