RHEL 10 : wireshark (RHSA-2026:26182)

high Nessus Plugin ID 321266

Synopsis

The remote Red Hat host is missing one or more security updates for wireshark.

Description

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:26182 advisory.

The wireshark packages contain a network protocol analyzer used to capture and browse the traffic running on a computer network.

Security Fix(es):

* wireshark: Buffer Over-read in Wireshark (CVE-2026-3203)

* wireshark: Improperly Controlled Sequential Memory Allocation in Wireshark (CVE-2026-3201)

* wireshark: Heap-based Buffer Overflow in Wireshark (CVE-2026-5405)

* wireshark: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in Wireshark (CVE-2026-5656)

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 wireshark package based on the guidance in RHSA-2026:26182.

Plugin Details

Severity: High

ID: 321266

File Name: redhat-RHSA-2026-26182.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 6/16/2026

Updated: 6/16/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2026-5656

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:wireshark-devel, cpe:/o:redhat:enterprise_linux_eus:10.0, cpe:/o:redhat:enterprise_linux:10, p-cpe:/a:redhat:enterprise_linux:wireshark, p-cpe:/a:redhat:enterprise_linux:wireshark-cli

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/16/2026

Vulnerability Publication Date: 10/8/2024

Reference Information

CVE: CVE-2026-3201, CVE-2026-3203, CVE-2026-5405, CVE-2026-5656

CWE: 122, 126, 1325, 22

RHSA: 2026:26182

Detections

Analytics