A flaw was found in GStreamer's gst-plugins-base MicroDVD subtitle parser. When processing a specially crafted subtitle file, the parser may dereference a NULL pointer, causing the application to crash when a user opens or plays media with a malformed MicroDVD (.sub) subtitle file.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
red hat:red hat enterprise linux 9
red hat:red hat enterprise linux 10
red hat:red hat enterprise linux 6
red hat:red hat enterprise linux 8
red hat:red hat enterprise linux 7
References 4
https://access.redhat.com/security/cve/CVE-2026-119842
secalert@redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2564183
secalert@redhat.com
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/11238.patch
secalert@redhat.com
https://gstreamer.freedesktop.org/security/sa-2026-0019.html
secalert@redhat.com