Is CVE-2026-49295 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-49295 being exploited in the wild.

How severe is CVE-2026-49295?

High severity, with a CVSS score of 7.1, published 19 June 2026.

Is there a fix for CVE-2026-49295?

A patch was published on 2026-06-19: Fix committed in version 1.0.20 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-49295 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-49295?

Check whether you run struktur AG Libde265 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-49295: Strukturag libde265 out-of-bounds write in process_reference_picture_set

CVE-2026-49295 · Severity: high · CVSS 7.1 · Published 2026-06-19

libde265 is an open-source library used by various applications to decode H.265 (HEVC) video files. A vulnerability in how the library handles specific video data structures allows an attacker to cause a crash or potentially execute unauthorized code by providing a specially crafted video file. This could lead to service disruptions or unauthorized access if a user opens a malicious video file in an affected application.

Technologies: struktur AG Libde265. Vendors: struktur AG.

Quick answers

Is CVE-2026-49295 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-49295 being exploited in the wild.
How severe is CVE-2026-49295?: High severity, with a CVSS score of 7.1, published 19 June 2026.
Which products and versions are affected?: struktur AG Libde265 < 1.0.20.
Is there a fix for CVE-2026-49295?: A patch was published on 2026-06-19: Fix committed in version 1.0.20 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-49295 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-49295?: Check whether you run struktur AG Libde265 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An out-of-bounds write vulnerability exists in libde265 within the `decoder_context::process_reference_picture_set()` function in `decctx.cc`. The issue stems from a missing aggregate bound check when constructing predicted short-term reference picture sets (RPS). While individual list sizes are validated, the combined count of entries after predicted RPS construction can exceed the 16-entry limit of the `PocStFoll` array, leading to a write at index 16. An attacker can exploit this by providing a crafted H.265 bitstream with `inter_ref_pic_set_prediction_flag=1` that results in 17 entries. This is a remote attack vector requiring user interaction (opening a file) and can result in memory corruption, application crashes, or potential arbitrary code execution. The vulnerability is patched in version 1.0.20.

Affected products

strukturag libde265 < 1.0.20

Timeline

2026-05-26: advisory: GitHub Security Advisory published
2026-06-19: disclosed: NVD publication date
2026-06-19: patched: Fix committed in version 1.0.20

References

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