CVE-2026-19389

CVE Details

Release Date:	2026-08-10
Impact:	Important	What is this?

Description

Multiple integer overflow and underflow vulnerabilities were found in the GStreamer gst-plugins-ugly ASF demuxer (asfdemux) when parsing header objects from crafted ASF, WMV, or WMA files. Insufficient validation of attacker-controlled length and size values can bypass bounds checks and cause out-of-bounds heap reads. This can result in application crash, denial of service, or limited information disclosure when untrusted media is processed.

See more information about CVE-2026-19389 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	7.1
Vector String:	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Version:	3.1
Attack Vector:	Network
Attack Complexity:	Low
Privileges Required:	None
User Interaction:	Required
Scope:	Unchanged
Confidentiality Impact:	Low
Integrity Impact:	None
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 10 (gstreamer1-plugins-ugly-free)	ELSA-2026-55435	2026-08-17
Oracle Linux version 9 (gstreamer1-plugins-bad-free)	ELSA-2026-55865	2026-08-17
Oracle Linux version 9 (gstreamer1-plugins-ugly-free)	ELSA-2026-55865	2026-08-17