CVE-2021-3497

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CVSS 3.1

7.8 high

EPSS

1%p67

Published

Apr 19, 2021 (Apr 19, 2021)

Modified

Jun 17, 2026

Description

GStreamer before 1.18.4 might access already-freed memory in error code paths when demuxing certain malformed Matroska files.

Vendors: gstreamer debian redhat
Products: gstreamer, debian linux, enterprise linux
Weakness: CWE-416
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.2%)

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