Detections
Analytics

Mozilla Firefox < 153.0.3

medium Nessus Plugin ID 331907

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Synopsis

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

Description

The version of Firefox installed on the remote macOS or Mac OS X host is prior to 153.0.3. It is, therefore, affected by a vulnerability as referenced in the mfsa2026-73 advisory.

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

Solution

Upgrade to Mozilla Firefox version 153.0.3 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2026-73/

Plugin Details

Severity: Medium

ID: 331907

File Name: macos_firefox_153_0_3.nasl

Version: 1.3

Type: Local

Agent: macosx

Published: 8/4/2026

Updated: 8/10/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.75

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

CVSS Score Source: CVE-2026-18809

Vulnerability Information

CPE: cpe:/a:mozilla:firefox

Required KB Items: installed_sw/Mozilla Firefox

Exploit Ease: No known exploits are available

Patch Publication Date: 8/4/2026

Vulnerability Publication Date: 8/4/2026

Reference Information

CVE: CVE-2026-18809

IAVB: 2026-B-0219