Mozilla Firefox < 152.0.6

medium Nessus Plugin ID 326753

Synopsis

A web browser installed on the remote macOS or Mac OS X host is affected by multiple vulnerabilities.

Description

The version of Firefox installed on the remote macOS or Mac OS X host is prior to 152.0.6. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-67 advisory.

- We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. (CVE-2026-15718, CVE-2026-15719)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Mozilla Firefox version 152.0.6 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2026-67/

Plugin Details

Severity: Medium

ID: 326753

File Name: macos_firefox_152_0_6.nasl

Version: 1.5

Type: Local

Agent: macosx

Published: 7/14/2026

Updated: 7/31/2026

Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.13

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2026-15719

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.9

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

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

Vulnerability Information

CPE: cpe:/a:mozilla:firefox

Required KB Items: installed_sw/Mozilla Firefox

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/14/2026

Vulnerability Publication Date: 7/14/2026

Reference Information

CVE: CVE-2026-15718, CVE-2026-15719

IAVA: 2026-A-0695, 2026-A-0755