Linux Distros Unpatched Vulnerability : CVE-2026-1940

high Nessus Plugin ID 301748

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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.

- An incomplete fix for CVE-2024-47778 allows an out-of-bounds read in gst_wavparse_adtl_chunk() function.
The patch added a size validation check lsize + 8 > size, but it does not account for the GST_ROUND_UP_2(lsize) used in the actual offset calculation. When lsize is an odd number, the parser advances more bytes than validated, causing OOB read. (CVE-2026-1940)

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

Solution

There is no known solution at this time.

Plugin Details

Severity: High

ID: 301748

File Name: unpatched_CVE_2026_1940.nasl

Version: 1.7

Type: Local

Agent: unix

Family: Misc.

Published: 3/10/2026

Updated: 6/21/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5.4

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

CVSS Score Source: CVE-2026-1940

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.9

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:centos:centos:gstreamer-devel, p-cpe:/a:canonical:ubuntu_linux:gst-plugins-bad1.0, p-cpe:/a:debian:debian_linux:gst-plugins-good1.0, p-cpe:/a:centos:centos:mingw32-gstreamer1, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:centos:centos:gstreamer-tools, p-cpe:/a:redhat:enterprise_linux:gstreamer-devel-docs, cpe:/o:canonical:ubuntu_linux:25.10, p-cpe:/a:redhat:enterprise_linux:gstreamer1, cpe:/o:redhat:enterprise_linux:9, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:gstreamer1, p-cpe:/a:centos:centos:gstreamer1-devel-docs, p-cpe:/a:redhat:enterprise_linux:gstreamer-devel, p-cpe:/a:redhat:enterprise_linux:gstreamer1-devel, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:redhat:enterprise_linux:gstreamer-tools, p-cpe:/a:redhat:enterprise_linux:gstreamer1-devel-docs, p-cpe:/a:centos:centos:mingw64-gstreamer1, p-cpe:/a:redhat:enterprise_linux:mingw32-gstreamer1, p-cpe:/a:centos:centos:gstreamer-devel-docs, p-cpe:/a:redhat:enterprise_linux:gstreamer, p-cpe:/a:centos:centos:gstreamer1-devel, p-cpe:/a:redhat:enterprise_linux:mingw64-gstreamer1, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:centos:centos:7, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:centos:centos:gstreamer

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: 3/7/2026

Reference Information

CVE: CVE-2026-1940

Detections

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