RHEL 7 : gstreamer1-plugins-bad-free (RHSA-2026:47176)

high Nessus Plugin ID 330445

Synopsis

The remote Red Hat host is missing one or more security updates for gstreamer1-plugins-bad-free.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:47176 advisory.

GStreamer is a streaming media framework based on graphs of filters which operate on media data. The gstreamer1-plugins-bad-free package contains a collection of plug-ins for GStreamer.

Security Fix(es):

* gstreamer1-plugins-bad-free: GStreamer: Heap buffer overflow via crafted VNC server rectangle in librfb (CVE-2026-52720)

* gstreamer1-plugins-bad-free: GStreamer: Signed integer overflow in VMnc decoder cursor payload handling (CVE-2026-52722)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL gstreamer1-plugins-bad-free package based on the guidance in RHSA-2026:47176.

Plugin Details

Severity: High

ID: 330445

File Name: redhat-RHSA-2026-47176.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 7/28/2026

Updated: 7/28/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.12

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-52720

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:rhel_els:7, p-cpe:/a:redhat:enterprise_linux:gstreamer1-plugins-bad-free-devel, p-cpe:/a:redhat:enterprise_linux:gstreamer1-plugins-bad-free-gtk, p-cpe:/a:redhat:enterprise_linux:gstreamer1-plugins-bad-free

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 7/28/2026

Vulnerability Publication Date: 6/15/2026

Reference Information

CVE: CVE-2026-52720, CVE-2026-52722

CWE: 122, 190

RHSA: 2026:47176

Detections

Analytics