CVE-2024-26167 Overview
CVE-2024-26167 is a spoofing vulnerability affecting Microsoft Edge for Android. The flaw is categorized under [CWE-1021] Improper Restriction of Rendered UI Layers or Frames, which enables user interface confusion attacks against mobile browser users. An attacker can craft a malicious web page that misrepresents interface elements to trick the victim into taking unintended actions. Exploitation requires user interaction over the network and results in limited impact to integrity, with no impact to confidentiality or availability.
Microsoft released a fix through the Microsoft Security Response Center. Refer to the Microsoft Security Update Guide CVE-2024-26167 for the authoritative advisory.
Critical Impact
Attackers can spoof trusted UI elements in Microsoft Edge for Android to deceive users into disclosing information or approving malicious actions.
Affected Products
- Microsoft Edge (Chromium-based) for Android
- Android platform installations of Microsoft Edge prior to the fixed release
- Mobile users interacting with attacker-controlled web content in Edge for Android
Discovery Timeline
- 2024-03-07 - CVE-2024-26167 published to the National Vulnerability Database
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2024-26167
Vulnerability Analysis
The vulnerability is a spoofing weakness in Microsoft Edge for Android tied to [CWE-1021]. This weakness class covers cases where a browser fails to properly restrict how rendered UI layers or frames are displayed, allowing an attacker to overlay, mimic, or obscure trusted browser chrome. On mobile devices, address bars, permission prompts, and security indicators occupy limited screen space, which magnifies the impact of any rendering inconsistency.
An attacker hosts a malicious page and lures the victim to open it in Edge for Android. The page manipulates rendering so that untrusted content appears to originate from a trusted origin. Because the attack targets user perception rather than a memory-safety boundary, no code execution or data disclosure occurs directly; the payoff comes from downstream user decisions such as credential entry or link approval.
Root Cause
The root cause is improper restriction of UI layers rendered by the browser. Edge for Android does not sufficiently isolate attacker-controlled DOM rendering from trusted UI signals, allowing spoofed content to overlap with or replace elements users associate with legitimate origins.
Attack Vector
The attack is network-based and requires user interaction. A victim must open a crafted URL, tap a link, or load attacker-supplied content inside Edge for Android. No authentication or elevated privileges are required on the target device. Successful exploitation influences user trust decisions but does not by itself grant the attacker access to session data or device resources.
No verified proof-of-concept code is publicly available. Consult the Microsoft Security Update Guide CVE-2024-26167 for vendor technical detail.
Detection Methods for CVE-2024-26167
Indicators of Compromise
- Users reporting mismatched URLs, unexpected permission prompts, or credential dialogs inside Edge for Android sessions
- Mobile device telemetry showing Edge navigations to newly registered or typosquatted domains prior to credential submission events
- Phishing campaigns delivering links specifically targeting Edge for Android user agents
Detection Strategies
- Correlate mobile browser telemetry with identity provider logs to flag credential submissions that follow navigation to low-reputation domains
- Inspect enterprise mobile management logs for Edge for Android versions predating the Microsoft fix
- Deploy phishing-aware URL inspection at the network egress layer to flag pages that attempt UI overlay techniques targeting mobile browsers
Monitoring Recommendations
- Track Edge for Android version inventory through mobile device management to confirm patched builds are deployed
- Monitor authentication anomalies such as impossible-travel or unusual client fingerprints originating from Android devices immediately after suspect URL visits
- Enable user reporting workflows so employees can quickly escalate suspected browser spoofing to the security team
How to Mitigate CVE-2024-26167
Immediate Actions Required
- Update Microsoft Edge for Android to the latest version available through the Google Play Store on all managed devices
- Push the update through mobile device management to enforce installation across the fleet
- Warn users to verify address bar contents and avoid entering credentials on pages reached through unsolicited links
Patch Information
Microsoft addressed CVE-2024-26167 through an updated release of Microsoft Edge for Android distributed via the Google Play Store. Details and fixed version references are documented in the Microsoft Security Update Guide CVE-2024-26167.
Workarounds
- Restrict browsing on managed Android devices to vetted URLs using mobile threat defense or secure browser policies until patched builds are deployed
- Enforce phishing-resistant multi-factor authentication so spoofed credential prompts do not yield usable session tokens
- Provide targeted user awareness training on mobile browser spoofing techniques and safe link handling
# Verify installed Microsoft Edge version on an Android device via adb
adb shell dumpsys package com.microsoft.emmx | grep versionName
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
