Is CVE-2026-45382 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-45382 being exploited in the wild.

How severe is CVE-2026-45382?

Informational severity, with a CVSS score of 6.9, published 21 July 2026.

Is there a fix for CVE-2026-45382?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-45382 attacked?

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

Am I affected by CVE-2026-45382?

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-2026-45382: strukturag libde265 out-of-bounds read in decode_slice_unit_tiles

CVE-2026-45382 · Severity: info · CVSS 6.9 · Published 2026-07-21

libde265 is an open-source library used to decode H.265 (HEVC) video files, often found in image viewers and media players. A vulnerability in how the library handles malformed video data could allow an attacker to cause a program crash by providing a specially crafted video or image file. This could lead to a denial-of-service, interrupting operations or causing applications using the library to fail.

Technologies: struktur AG Libde265. Vendors: struktur AG.

Quick answers

Is CVE-2026-45382 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-45382 being exploited in the wild.
How severe is CVE-2026-45382?: Informational severity, with a CVSS score of 6.9, published 21 July 2026.
Which products and versions are affected?: struktur AG Libde265 < 1.0.19.
Is there a fix for CVE-2026-45382?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-45382 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-45382?: 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 (OOB) read vulnerability exists in libde265 prior to version 1.0.19 within the `decoder_context::decode_slice_unit_tiles` function in `decctx.cc`. The root cause is a failure to validate the `ctbAddrRS` index, calculated from Picture Parameter Set (PPS) supplied `colBd[]` and `rowBd[]` arrays, against the size of the `CtbAddrRStoTS` vector. An attacker can provide a malformed PPS with geometry inconsistent with the Sequence Parameter Set (SPS) to trigger a 4-byte heap-buffer-overflow read. This vulnerability specifically affects the parallel-tile decoding path when worker threads are enabled. The issue is fixed in version 1.0.19.

Affected products

strukturag libde265 < 1.0.19

Timeline

2026-05-19: advisory: GitHub Security Advisory published
2026-07-21: disclosed: NVD publication date

References

https://github.com/strukturag/libde265/security/advisories/GHSA-hwhx-x2mq-ccr9

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