Microsoft Edge (Chromium) < 139.0.3405.125 (CVE-2025-9478)

high Nessus Plugin ID 258091

Synopsis

The remote host has an web browser installed that is affected by a vulnerability.

Description

The version of Microsoft Edge installed on the remote Windows host is prior to 139.0.3405.125. It is, therefore, affected by a vulnerability as referenced in the August 28, 2025 advisory.

- Use after free in ANGLE in Google Chrome prior to 139.0.7258.154 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical) (CVE-2025-9478)

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 Microsoft Edge version 139.0.3405.125 or later.

See Also

http://www.nessus.org/u?fad0268e

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-9478

Plugin Details

Severity: High

ID: 258091

File Name: microsoft_edge_chromium_139_0_3405_125.nasl

Version: 1.1

Type: local

Agent: windows

Family: Windows

Published: 8/28/2025

Updated: 8/28/2025

Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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-2025-9478

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: cpe:/a:microsoft:edge

Required KB Items: installed_sw/Microsoft Edge (Chromium), SMB/Registry/Enumerated

Exploit Ease: No known exploits are available

Patch Publication Date: 8/28/2025

Vulnerability Publication Date: 8/26/2025

Reference Information

CVE: CVE-2025-9478