Is CVE-2026-3086 actively exploited?

No active exploitation of CVE-2026-3086 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-3086 be exploited remotely?

No. CVE-2026-3086 requires local access to exploit.

What is the CVSS score of CVE-2026-3086?

CVE-2026-3086 has a CVSS score of 7.8 (HIGH).

HOME VULNERABILITIESCVE-2026-3086

HIGH

CVE-2026-3086

CWE-787Published: March 16, 2026· Updated: Mar 17, 2026

7.8

CVSS v3.1

EPSS:0.06%probability of exploitation in 30 daysPercentile:19.3th

Official Description

GStreamer H.266 Codec Parser Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.

The specific flaw exists within the processing of APS units. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28911.

NVD Source

Technical Analysis

CVE-2026-3086 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.