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Gstreamer CVE-2025-47183

MEDIUM
Out-of-bounds Read (CWE-125)
2025-08-07 cve@mitre.org
Information Disclosure Gstreamer Red Hat Suse
6.6
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
6.6 MEDIUM
AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H
SUSE
MEDIUM
qualitative
Red Hat
5.6 MEDIUM
qualitative

Primary rating from NVD.

CVSS VectorNVD

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

Lifecycle Timeline

4
Patch released
Apr 06, 2026 - 08:30 nvd
Patch available
Analysis Generated
Mar 17, 2026 - 20:45 vuln.today
PoC Detected
Mar 17, 2026 - 15:52 vuln.today
Public exploit code
CVE Published
Aug 07, 2025 - 20:15 nvd
MEDIUM 6.6

DescriptionCVE.org

In GStreamer through 1.26.1, the isomp4 plugin's qtdemux_parse_tree function may read past the end of a heap buffer while parsing an MP4 file, leading to information disclosure.

AnalysisAI

A heap buffer over-read vulnerability exists in GStreamer's isomp4 plugin (qtdemux_parse_tree function) when parsing MP4 files, affecting versions through 1.26.1. The vulnerability allows local attackers with user-level privileges who can trick a user into opening a malicious MP4 file to disclose sensitive heap memory contents and potentially cause application crashes. Publicly available proof-of-concept code exists, and while the EPSS score of 0.02% indicates low exploitation probability overall, the presence of public exploits and the information disclosure capability warrant prompt patching.

Technical ContextAI

GStreamer is a multimedia framework used across Linux distributions, embedded systems, and media applications for audio/video processing and playback. The vulnerability resides in the isomp4 (ISO Base Media File Format) demultiplexer plugin, specifically in the qtdemux_parse_tree function responsible for parsing the hierarchical atom/box structure of MP4 container files. The root cause is classified as CWE-125 (Out-of-bounds Read), indicating that the parser fails to properly validate buffer boundaries before reading atom data, causing reads that extend beyond allocated heap memory. This is a classic parsing error where size fields in the MP4 atom headers are not validated against actual buffer limits before use. GStreamer versions prior to and including 1.26.1 are affected across all platforms where the isomp4 plugin is compiled and used (cpe:2.3:a:gstreamer:gstreamer:*:*:*:*:*:*:*:*).

RemediationAI

The primary remediation is to upgrade GStreamer to a version newer than 1.26.1 (a patched version will be released; check https://gstreamer.freedesktop.org/security/ for the specific fixed version number). For distributions, update via your package manager (e.g., apt update && apt upgrade gstreamer1.0-plugins-bad on Debian/Ubuntu, or equivalent for your distribution). For custom applications using GStreamer SDK, recompile against the patched GStreamer library. Until patching is feasible, apply mitigations: disable or restrict the isomp4 plugin if not required (set GST_PLUGIN_SCANNER environment variable or use plugin registry configuration), restrict opening untrusted MP4 files by disabling media autoplay in applications, and run media applications with minimal privileges. Additionally, monitor the referenced Atredis advisory (https://github.com/atredispartners/advisories/blob/master/2025/ATREDIS-2025-0003.md) and VulDB entry (https://vuldb.com/?id.319188) for any updates on patching timelines or additional technical details.

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Same weakness CWE-125 – Out-of-bounds Read

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Vendor StatusVendor

SUSE

Severity: Medium
Product Status
SUSE Linux Enterprise Desktop 15 SP6 SUSE Linux Enterprise Server 15 SP6 SUSE Linux Enterprise Server for SAP Applications 15 SP6 Fixed
SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP7 Fixed
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS Fixed
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS Fixed
SUSE Linux Enterprise High Performance Computing 15 SP6 SUSE Linux Enterprise Module for Basesystem 15 SP6 Fixed

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CVE-2025-47183 vulnerability details – vuln.today
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