Detections
Analytics

Linux Distros Unpatched Vulnerability : CVE-2026-86476

high Nessus Plugin ID 365685

Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - A flaw was found in gst-plugins-base. A heap buffer overflow can be triggered when processing video buffers whose attached GstVideoMeta metadata declares plane strides and offsets that exceed the actual backing memory allocation. The metadata is not range-checked during deserialization, and the video frame mapping code does not verify that the declared plane geometry fits within the buffer before allowing consumers to read or write video data. A local attacker who controls the sending side of a GStreamer inter-process IPC pipeline can deliver a crafted buffer carrying fabricated strides, causing the receiving process to read or write beyond heap boundaries. Successful exploitation can cause a denial of service or potentially allow code execution within the affected process. (CVE-2026-86476)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2026-86476

Plugin Details

Severity: High

ID: 365685

File Name: unpatched_CVE_2026_86476.nasl

Version: 1.2

Type: Local

Agent: unix

Family: Misc.

Published: 10/14/2026

Updated: 10/15/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.38

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2026-86476

CVSS v3

Risk Factor: High

Base Score: 8.4

Temporal Score: 7.7

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C

Vulnerability Information

CPE: cpe:/o:centos:centos:7, cpe:/o:centos:centos:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:centos:centos:gstreamer-plugins-base-devel-docs, p-cpe:/a:centos:centos:gstreamer-plugins-base-devel, p-cpe:/a:centos:centos:gstreamer-plugins-base-tools, p-cpe:/a:centos:centos:gstreamer-plugins-base, p-cpe:/a:centos:centos:gstreamer1-plugins-base-devel-docs, p-cpe:/a:centos:centos:gstreamer1-plugins-base-devel, p-cpe:/a:centos:centos:gstreamer1-plugins-base-tools, p-cpe:/a:centos:centos:gstreamer1-plugins-base, p-cpe:/a:redhat:enterprise_linux:gstreamer-plugins-base-devel-docs, p-cpe:/a:redhat:enterprise_linux:gstreamer-plugins-base-devel, p-cpe:/a:redhat:enterprise_linux:gstreamer-plugins-base-tools, p-cpe:/a:redhat:enterprise_linux:gstreamer-plugins-base, p-cpe:/a:redhat:enterprise_linux:gstreamer1-plugins-base-devel-docs, p-cpe:/a:redhat:enterprise_linux:gstreamer1-plugins-base-devel, p-cpe:/a:redhat:enterprise_linux:gstreamer1-plugins-base-tools, p-cpe:/a:redhat:enterprise_linux:gstreamer1-plugins-base

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 10/12/2026

Reference Information

CVE: CVE-2026-86476