KLA52702 ACE vulnerability in Microsoft Browser

2023-08-3100:00:00

Kaspersky Lab

threats.kaspersky.com

microsoft browser

use after free

malicious code execution

denial of service

microsoft edge (chromium-based)

vulnerability

cve-2023-4572

ace

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

9.4

Confidence

High

EPSS

0.003

Percentile

72.0%

JSON

Use after free vulnerability was found in Microsoft Browser. Malicious users can exploit this vulnerability to execute arbitrary code, cause denial of service.

Original advisories

CVE-2023-4572

Related products

Microsoft-Edge

CVE list

CVE-2023-4572 critical

KB list

Solution

Install necessary updates from the Settings and more menu, that are listed in your About Microsoft Edge page (Microsoft Edge About page usually can be accessed from the Help and feedback option)

Microsoft Edge update settings

Impacts

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.