CVE-2026-53703

highpriority · track · 0EPSS 0.002 · 16 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.24% (16th) EPSS

CVSS 7.1 · high

Is it mine?

17 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · cert_bund

EPSS · scored 2026-10-27

A vulnerability was found in the GStreamer RealMedia demuxer (gst-plugins-ugly). When processing a RealMedia (.rm) file, the demuxer parses MDPR (media properties) chunks to configure audio streams. For audio stream header versions 4 and 5, the parser reads fields such as codec type, packet size, sample rate, channel count, and extra codec data length from fixed offsets within the chunk without first checking that the chunk contains enough data. If a malicious file provides an MDPR chunk that is too small to contain a complete audio stream header, the parser reads beyond the end of the buffer. This can cause the application to crash. In some cases, bytes read past the buffer boundary may be incorporated into stream metadata, which could result in limited information disclosure.

cvss

Technical severity, 0–10. One row per scoring source.

7.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–7.1

v3.17.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:Hsecondary · ENISA EU

v3.17.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:Hsecondary · secalert@redhat.com USexploitability 2.8 · impact 4.2

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-125US

affected products (17)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Open Source GStreamer≤ gst-libav <1.28.4cert_bundDE
Open Source GStreamer≤ gst-plugins-bad <1.28.4cert_bundDE
Open Source GStreamer≤ gst-plugins-base <1.28.4cert_bundDE
Open Source GStreamer≤ gst-plugins-good <1.28.4cert_bundDE
Open Source GStreamer≤ gst-plugins-ugly <1.28.4cert_bundDE
Red Hat Red Hat Enterprise Linux 10< 0:1.26.7-2.el10_2.1enisa_euvdEU
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support< 0:1.24.11-1.el10_0.2enisa_euvdEU
Red Hat Red Hat Enterprise Linux 9< 0:1.22.12-6.el9_8.1enisa_euvdEU
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support< 0:1.22.12-4.el9_6.1enisa_euvdEU

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1919GStreamer: Mehrere SchwachstellenDeutsch2026-06-14csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in GStreamer ausnutzen, um einen Denial of Service Angriff durchzuführen, Daten zu manipulieren oder vertrauliche Informationen offenzulegen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund NVD CVE.org MITRE

published 2026-06-15modified 2026-08-05

references (14)

External citations — patches, advisories, analysis.

scry

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