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Gstreamer CVE-2025-47807

MEDIUM
NULL Pointer Dereference (CWE-476)
2025-08-07 cve@mitre.org
Denial Of Service Gstreamer Red Hat Suse
5.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
5.5 MEDIUM
AV:L/AC:L/PR:N/UI:R/S:U/C:N/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:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
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 5.5

DescriptionCVE.org

In GStreamer through 1.26.1, the subparse plugin's subrip_unescape_formatting function may dereference a NULL pointer while parsing a subtitle file, leading to a crash.

AnalysisAI

A NULL pointer dereference vulnerability exists in GStreamer's subparse plugin, specifically in the subrip_unescape_formatting function, which can crash applications when processing maliciously crafted or malformed subtitle files. GStreamer versions through 1.26.1 are affected, and the vulnerability is exploitable through local attack vectors requiring user interaction to open a subtitle file. A public proof-of-concept is available, though the low EPSS score of 0.03% (7th percentile) suggests limited real-world exploitation likelihood despite the availability of exploit code.

Technical ContextAI

GStreamer (cpe:2.3:a:gstreamer:gstreamer:*:*:*:*:*:*:*:*) is a multimedia framework that processes various audio and video formats, including subtitle formats like SubRip. The subparse plugin specifically handles subtitle parsing and formatting. The vulnerability is classified as CWE-476 (NULL Pointer Dereference), a memory safety defect where the subrip_unescape_formatting function fails to validate pointer validity before dereferencing it during subtitle file parsing. This occurs when the function encounters unexpected input structures in SubRip subtitle files, causing it to attempt to access memory at a NULL address, resulting in a denial-of-service condition through application crash.

RemediationAI

Upgrade GStreamer to a version newer than 1.26.1 once a patched release is available from the GStreamer project. Check https://gstreamer.freedesktop.org/security/ and https://gstreamer.freedesktop.org/releases/ for the latest stable release that addresses CVE-2025-47807. As an interim measure before patches are deployed, restrict access to untrusted subtitle files by educating users not to open SubRip files from unknown sources, and consider using application sandboxing or containerization (such as Flatpak for GStreamer-based applications) to limit crash impact to isolated processes. For environments where GStreamer is embedded in servers or automated systems, implement file validation and integrity checks to reject malformed subtitle files before parsing.

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Same weakness CWE-476 – NULL Pointer Dereference

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Same technique Denial Of Service

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Vendor StatusVendor

SUSE

Severity: Medium
Product Status
Container suse/sl-micro/6.0/baremetal-os-container:latest Affected
SUSE Enterprise Storage 7.1 Fixed
SUSE Linux Enterprise Desktop 15 SP6 SUSE Linux Enterprise High Performance Computing 15 SP6 SUSE Linux Enterprise Module for Basesystem 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 High Performance Computing 15 SP7 SUSE Linux Enterprise Module for Basesystem 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 SP3-LTSS Fixed

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CVE-2025-47807 vulnerability details – vuln.today
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