CVE-2026-19389
Multiple integer overflow and underflow vulnerabilities were found in the GStreamer gst-plugins-ugly ASF demuxer (asfdemux) when parsing header objects from crafted ASF, WMV, or WMA files.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.34%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Multiple integer overflow and underflow vulnerabilities were found in the GStreamer gst-plugins-ugly ASF demuxer (asfdemux) when parsing header objects from crafted ASF, WMV, or WMA files. Insufficient validation of attacker-controlled length and size values can bypass bounds checks and cause out-of-bounds heap reads. This can result in application crash, denial of service, or limited information disclosure when untrusted media is processed.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
- EPSS
- 0.34% probability · 27th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Source
- secalert@redhat.com
References
- https://access.redhat.com/errata/RHSA-2026:55435
- https://access.redhat.com/errata/RHSA-2026:55865
- https://access.redhat.com/security/cve/CVE-2026-19389
- https://bugzilla.redhat.com/show_bug.cgi?id=2513016
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12233
- https://gstreamer.freedesktop.org/releases/1.28/
- https://gstreamer.freedesktop.org/security/sa-2026-0075.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.