Buffer overflow in Red Hat Enterprise Linux 10
CVE-2026-19387
A heap out-of-bounds write vulnerability was found in the GStreamer gst-plugins-bad adpcmdec element when decoding IMA/DVI ADPCM audio. Insufficient validation of the per-block sample count for multi-channel streams allows a crafted WAV file to cause writes beyond the allocated output buffer. This can lead to application crash, denial of service, memory corruption, or potentially arbitrary code execution when untrusted media is processed.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H.
EPSS exploit prediction
EPSS: 0.004 (29.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.001
Affected products
- Red Hat Enterprise Linux 10 — versions 0:1.26.7-2.el10_2.7
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9 — versions 0:1.22.12-7.el9_8.4, 0:1.22.12-6.el9_8.2
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-19387 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12235
- gstreamer.freedesktop.org/releases/1.28/
- access.redhat.com/errata/RHSA-2026:55433 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:55865 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:56521 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:65122 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:65123 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:65124 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-19387?
- CVE-2026-19387 is a high-severity vulnerability in Red Hat Enterprise Linux 10, classified under Out-of-bounds Write. CVSS score: 7.6/10. Published 2026-08-10.
- How severe is CVE-2026-19387?
- High severity. CVSS v3 base score is 7.6 out of 10.