Linux Distros Unpatched Vulnerability : CVE-2026-35092

high Nessus Plugin ID 304628

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 Corosync. An integer overflow vulnerability in Corosync's join message sanity validation allows a remote, unauthenticated attacker to send crafted User Datagram Protocol (UDP) packets.
This can cause the service to crash, leading to a denial of service. This vulnerability specifically affects Corosync deployments configured to use totemudp/totemudpu mode. (CVE-2026-35092)

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: 304628

File Name: unpatched_CVE_2026_35092.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Misc.

Published: 4/2/2026

Updated: 4/2/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.3

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

CVSS Score Source: CVE-2026-35092

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: p-cpe:/a:centos:centos:corosync-qdevice, p-cpe:/a:redhat:enterprise_linux:corosynclib, p-cpe:/a:redhat:enterprise_linux:spausedd, cpe:/o:redhat:enterprise_linux:9, cpe:/o:centos:centos:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:corosynclib-devel, p-cpe:/a:redhat:enterprise_linux:corosync, p-cpe:/a:redhat:enterprise_linux:corosync-qnetd, p-cpe:/a:centos:centos:corosync-qnetd, p-cpe:/a:redhat:enterprise_linux:corosync-qdevice, p-cpe:/a:centos:centos:corosynclib-devel, cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:spausedd, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:centos:centos:corosync-vqsim, p-cpe:/a:centos:centos:corosync, p-cpe:/a:redhat:enterprise_linux:corosync-vqsim, p-cpe:/a:centos:centos:corosynclib

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: 4/1/2026

Reference Information

CVE: CVE-2026-35092

Detections

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