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FreeBSD : Firefox -- Multiple vulnerabilities (1124a7b0-1338-11f1-a55d-b42e991fc52e)

critical Nessus Plugin ID 300606

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 1124a7b0-1338-11f1-a55d-b42e991fc52e advisory.

 CVE-2026-2807: Memory safety bugs present in Firefox 147 and Thunderbird 147 CVE-2026-2806: Uninitialized memory in the Graphics: Text component.
 CVE-2026-2805: Invalid pointer in the DOM: Core & HTML component.
 CVE-2026-2804: Use-after-free in the JavaScript: WebAssembly component.
 CVE-2026-2803: Information disclosure, mitigation bypass in the Settings UI component.
 CVE-2026-2802: Race condition in the JavaScript: GC component.
 CVE-2026-2801: Incorrect boundary conditions in the JavaScript:
 WebAssembly component.
 CVE-2026-2799: Use-after-free in the DOM: Core & HTML component.
 CVE-2026-2798: Use-after-free in the DOM: Core & HTML component.
 CVE-2026-2797: Use-after-free in the JavaScript: GC component.
 CVE-2026-2796: JIT miscompilation in the JavaScript: WebAssembly component CVE-2026-2795: Use-after-free in the JavaScript: GC 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?ad6730ab

Plugin Details

Severity: Critical

ID: 300606

File Name: freebsd_pkg_1124a7b0133811f1a55db42e991fc52e.nasl

Version: 1.1

Type: local

Published: 3/4/2026

Updated: 3/4/2026

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-2026-2807

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

Vulnerability Information

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/26/2026

Vulnerability Publication Date: 2/24/2026

Reference Information

CVE: CVE-2026-2795, CVE-2026-2796, CVE-2026-2797, CVE-2026-2798, CVE-2026-2799, CVE-2026-2801, CVE-2026-2802, CVE-2026-2803, CVE-2026-2804, CVE-2026-2805, CVE-2026-2806, CVE-2026-2807

IAVA: 2026-A-0184, 2026-A-0186