# CVE-2026-19387

## Summary

- **CVE ID:** CVE-2026-19387
- **Severity:** HIGH
- **CVSS Score:** 7.6 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H)
- **CWE:** CWE-787
- **Published:** Aug 10, 2026
- **Last Modified:** Sep 16, 2026

## Description

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.

## Affected Products

- Red Hat — Red Hat Enterprise Linux 10 (0:1.26.7-2.el10_2.7)
- Red Hat — Red Hat Enterprise Linux 9 (0:1.22.12-7.el9_8.4)
- Red Hat — Red Hat Enterprise Linux 9 (0:1.22.12-6.el9_8.2)
- Red Hat — Red Hat Enterprise Linux 8 (0:1.16.1-9.el8_10.2)
- Red Hat — Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions (0:1.18.4-9.el9_2.6)
- Red Hat — Red Hat Enterprise Linux 10.0 Extended Update Support (0:1.24.11-3.el10_0.7)
- Red Hat — Red Hat Enterprise Linux 9.6 Extended Update Support (0:1.22.12-5.el9_6.7)
- Red Hat — Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support (0:1.16.1-4.el8_6.5)
- Red Hat — Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On (0:1.16.1-4.el8_6.5)
- Red Hat — Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions (0:1.22.1-6.el9_4.7)
- Red Hat — Red Hat Enterprise Linux 8.8 Telecommunications Update Service (0:1.16.1-4.el8_8.5)
- Red Hat — Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions (0:1.16.1-4.el8_8.5)
- Red Hat — Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support (0:1.16.1-4.el8_4.5)
- Red Hat — Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On (0:1.16.1-4.el8_4.5)

## References

- [CNA](https://access.redhat.com/security/cve/CVE-2026-19387)
- [CNA](https://bugzilla.redhat.com/show_bug.cgi?id=2513015)
- [CNA](https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12235)
- [CNA](https://gstreamer.freedesktop.org/releases/1.28/)
- [CNA](https://access.redhat.com/errata/RHSA-2026:55433)
- [CNA](https://access.redhat.com/errata/RHSA-2026:55865)
- [CNA](https://access.redhat.com/errata/RHSA-2026:56521)
- [CNA](https://access.redhat.com/errata/RHSA-2026:65122)
- [CNA](https://access.redhat.com/errata/RHSA-2026:65123)
- [CNA](https://access.redhat.com/errata/RHSA-2026:65124)
- [CNA](https://access.redhat.com/errata/RHSA-2026:66406)
- [CNA](https://access.redhat.com/errata/RHSA-2026:66407)
- [CNA](https://access.redhat.com/errata/RHSA-2026:67151)
- [CNA](https://access.redhat.com/errata/RHSA-2026:67844)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.30%
- **EPSS Percentile:** 23.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._