CVE-2025-49755: Microsoft Edge (Chromium-based) for Android Spoofing Vulnerability

Overview

Severity
Medium (CVSS 4.3)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C
Category
Spoofing
Exploit Status
Not Exploited
Exploitation Likelihood
Unlikely
Patch Tuesday
2025-Aug
Released
2025-08-12
EPSS Score
0.06% (percentile: 18.5%)

Description

User interface (ui) misrepresentation of critical information in Microsoft Edge for Android allows an unauthorized attacker to perform spoofing over a network.

FAQ

According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution? The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. For example, when the score indicates that the Attack Vector is Local and User Interaction is Required, this could describe an exploit in which an attacker, through social engineering, convinces a victim to download and open a specially crafted file from a website which leads to a local attack on their computer. What is the version information for this release? Microsoft Edge Version Date Released Based on Chromium Version 139.0.3405.86 8/07/2025 139.0.7258.66/67 According to the CVSS metrics, successful exploitation of this vulnerability could lead to no loss of confidentiality (C:N) and integrity (I:N), but could lead to some loss of availability (A:L). What does that mean for this vulnerability? An attacker using either a specially-crafted page or a content script injected into a target page can show an extension's popup over a permission prompt or screen share dialog allowing the extension to spoof parts of the prompt's UI that shows its origin.

Affected Products (1)

Browser

  • Microsoft Edge for Android

Acknowledgments

<a href="https://linkedin.com/in/frozzipies">Farras Givari</a> with <a href="https://meta4sec.com/">Meta4sec</a>

Revision History

  • 2025-08-12: Information published.