CVE-2026-53703
CVE-2026-53703: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh7.1
High [CVE-2026-53703] out-of-bounds read in realmedia demuxer audio stream header parser
CVE-2026-53703Source published Source updated
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. This flaw…
- Affected products in this advisory
- Red Hat Enterprise Linux 10.0 Extended Update Support
- Red Hat Enterprise Linux 9.6 Extended Update Support
- Red Hat package: gstreamer1-plugins-ugly-free
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- gstreamer1-plugins-ugly-free-0:1.26.7-2.el10_2.1
- gstreamer1-plugins-ugly-free-0:1.24.11-1.el10_0.2
- gstreamer1-plugins-ugly-free-0:1.22.12-6.el9_8.1
- gstreamer1-plugins-ugly-free-0:1.22.12-4.el9_6.1
4 more entries in the full advisory.
- Mitigation guidance
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
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