RockyLinux 10 : firefox (RLSA-2026:7672)

critical Nessus Plugin ID 306534

Synopsis

The remote RockyLinux host is missing one or more security updates.

Description

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:7672 advisory.

* libpng: libpng: Arbitrary code execution due to use-after-free vulnerability (CVE-2026-33416)

* libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion (CVE-2026-33636)

* thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5734)

* thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5731)

* firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics: Text component (CVE-2026-5732)

Tenable has extracted the preceding description block directly from the RockyLinux 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 affected firefox, firefox-debuginfo and / or firefox-debugsource packages.

Plugin Details

Severity: Critical

ID: 306534

File Name: rocky_linux_RLSA-2026-7672.nasl

Version: 1.1

Type: Local

Family: Rocky Linux Local Security Checks

Published: 4/15/2026

Updated: 4/15/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2026-5734

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: cpe:/o:rocky:linux:10, p-cpe:/a:rocky:linux:firefox, p-cpe:/a:rocky:linux:firefox-debugsource, p-cpe:/a:rocky:linux:firefox-debuginfo

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/15/2026

Vulnerability Publication Date: 3/10/2026

Reference Information

CVE: CVE-2026-33416, CVE-2026-33636, CVE-2026-5731, CVE-2026-5732, CVE-2026-5734

Detections

Analytics