Is CVE-2025-60491 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2025-60491 being exploited in the wild.

How severe is CVE-2025-60491?

Informational severity, published 21 October 2026.

Which products and versions are affected?

GPAC Project MP4Box before 2.5.

Is there a fix for CVE-2025-60491?

Yes: fixed in MP4Box 2.5. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2025-60491 attacked?

It is attacked over the network or with local access, in a software library.

Am I affected by CVE-2025-60491?

Check whether you run GPAC Project MP4Box 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-2025-60491: GPAC MP4Box heap use-after-free in dasher

CVE-2025-60491 · Severity: info · Published 2026-10-21

GPAC MP4Box is a multimedia framework and tools for processing MP4 and DASH/HLS video segments. A heap use-after-free vulnerability in its dasher filter can be triggered by processing a specially crafted MPEG-TS file, allowing an attacker to cause a denial of service or potentially execute arbitrary code. An attacker could exploit this by providing a malformed media file to a system using MP4Box for video transcoding or packaging.

Technologies: GPAC Project MP4Box. Vendors: GPAC Project.

Quick answers

Is CVE-2025-60491 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2025-60491 being exploited in the wild.
How severe is CVE-2025-60491?: Informational severity, published 21 October 2026.
Which products and versions are affected?: GPAC Project MP4Box before 2.5.
Is there a fix for CVE-2025-60491?: Yes: fixed in MP4Box 2.5. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2025-60491 attacked?: It is attacked over the network or with local access, in a software library.
Am I affected by CVE-2025-60491?: Check whether you run GPAC Project MP4Box 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.

How to fix

Fixed in: MP4Box 2.5

Technical details

The vulnerability is a heap use-after-free in the dasher_flush_segment function within filters/dasher.c. It is triggered when processing crafted MPEG-TS input during DASH segmentation. The flaw allows reading or writing to freed memory, triggered by providing a malicious media file to the MP4Box command-line tool with DASH segmentation enabled.

Affected products

GPAC Project MP4Box before 2.5

Timeline

2025-08-27: disclosed
2025-09-09: patched

References

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