CVE-2026-53704
highpriority · track · 0EPSS 0.002 · 16 %ileDEEUUSEPSS · scored 2026-10-27
A flaw was found in GStreamer's RealMedia demuxer in the gst-plugins-ugly package. When processing a RealMedia file containing a specially crafted FILEINFO metadata section, the demuxer parses variable-name and variable-value pairs using re_skip_pascal_string() without validating that offsets remain within the mapped buffer. Additionally, the element count controlling the parsing loop is read from attacker-controlled data without validation, which can cause an infinite loop. A crafted RealMedia file can cause the application to crash, hang, or potentially read limited adjacent memory contents.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–7.1
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (16)
Products and version ranges known to be affected.
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.
references (12)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2026-53704cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2487614cnnvd
- https://access.redhat.com/errata/RHSA-2026:36674enisa_euvd
- https://access.redhat.com/errata/RHSA-2026:50688enisa_euvd
- https://access.redhat.com/errata/RHSA-2026:50691enisa_euvd
- https://access.redhat.com/security/cve/CVE-2026-53704enisa_euvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2487614enisa_euvd
- https://access.redhat.com/errata/RHSA-2026:36674nvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan