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FreeBSD : Mozilla -- Multiple vulnerabilities (32819a60-2943-11f1-8461-b42e991fc52e)

critical Nessus Plugin ID 303906

Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 32819a60-2943-11f1-8461-b42e991fc52e advisory.

 CVE-2026-4721: Memory safety bugs. Potential arbitrary code execution.
 CVE-2026-4709: Incorrect boundary conditions in the Audio/Video: GMP component.
 CVE-2026-4707: Incorrect boundary conditions in the Graphics:
 Canvas2D component.
 CVE-2026-4706: Incorrect boundary conditions in the Graphics:
 Canvas2D component.
 CVE-2026-4699: Incorrect boundary conditions in the Layout:
 Text and Fonts component.
 CVE-2026-4698: JIT miscompilation in the JavaScript Engine:
 JIT component.
 CVE-2026-4696: Use-after-free in the Layout: Text and Fonts component.
 CVE-2026-4694: Incorrect boundary conditions, integer overflow in the Graphics component.
 CVE-2026-4693: Incorrect boundary conditions in the Audio/Video: Playback component.
 CVE-2026-4692: Sandbox escape in the Responsive Design Mode component.
 CVE-2026-4691: Use-after-free in the CSS Parsing and Computation component.
 CVE-2026-4690: Sandbox escape due to integer overflow in the XPCOM component.
 CVE-2026-4689: Sandbox escape due to integer overflow in the XPCOM component.
 CVE-2026-4687: Sandbox escape in the Telemetry component.
 CVE-2026-4686: Incorrect boundary conditions in the Graphics:
 Canvas2D component.
 CVE-2026-4685: Incorrect boundary conditions in the Graphics:
 Canvas2D component.
 CVE-2026-4684: Race condition, use-after-free in the Graphics: WebRender component.

Tenable has extracted the preceding description block directly from the FreeBSD 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 packages.

See Also

http://www.nessus.org/u?4a1ca36e

Plugin Details

Severity: Critical

ID: 303906

File Name: freebsd_pkg_32819a60294311f18461b42e991fc52e.nasl

Version: 1.1

Type: local

Published: 3/26/2026

Updated: 3/26/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

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-2026-4698

CVSS v3

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

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

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

CVSS Score Source: CVE-2026-4692

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:thunderbird, p-cpe:/a:freebsd:freebsd:firefox, cpe:/o:freebsd:freebsd, p-cpe:/a:freebsd:freebsd:firefox-esr

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 3/26/2026

Vulnerability Publication Date: 3/4/2026

Reference Information

CVE: CVE-2026-4684, CVE-2026-4685, CVE-2026-4686, CVE-2026-4687, CVE-2026-4689, CVE-2026-4690, CVE-2026-4691, CVE-2026-4692, CVE-2026-4693, CVE-2026-4694, CVE-2026-4696, CVE-2026-4698, CVE-2026-4699, CVE-2026-4706, CVE-2026-4707, CVE-2026-4709, CVE-2026-4721

IAVA: 2026-A-0274, 2026-A-0275