Is CVE-2026-119843 being actively exploited?

CVE-2026-119843 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2026-119843?

CVE-2026-119843 has a CVSS 3.1 base score of 6.5 (MEDIUM).

CVE-2026-119843

MEDIUM · CVSS 6.5EPSS 0.6%EU EUVD

A flaw was found in GStreamer's gst-plugins-good package. The FLV media demuxer does not properly validate buffer sizes and data availability when processing enhanced audio and video tags in malformed or truncated FLV streams. A remote attacker could exploit this vulnerability by providing a specially crafted FLV media file that, when opened or streamed by a GStreamer-based application, triggers an assertion failure or a process crash, leading to denial of service.

Key facts

CVSS score: 6.5 (v3.1)
Severity: MEDIUM
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-617
EPSS score: 0.6% (47th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2026-115733)
Published: November 3, 2026
NVD last modified: November 3, 2026
Status: Awaiting Analysis

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2026-115733 in the EU Vulnerability Database. Last updated in EUVD on November 3, 2026.

View on the EU Vulnerability Database

References

Last updated November 4, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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