CVE-2024-38093 Overview
CVE-2024-38093 is a spoofing vulnerability affecting Microsoft Edge (Chromium-based). The flaw is categorized under [CWE-451] User Interface (UI) Misrepresentation of Critical Information, which allows an attacker to present misleading content within the browser interface. Exploitation requires user interaction over the network, and can lead to limited integrity impact without affecting confidentiality or availability. Microsoft addressed the issue through its standard Edge servicing channel.
Critical Impact
An attacker who successfully exploits this vulnerability can spoof trusted UI elements in Microsoft Edge, potentially misleading users into trusting content that originates from an attacker-controlled source.
Affected Products
- Microsoft Edge (Chromium-based)
Discovery Timeline
- 2024-06-20 - CVE-2024-38093 published to NVD
- 2026-07-20 - Last updated in NVD database
Technical Details for CVE-2024-38093
Vulnerability Analysis
The vulnerability enables spoofing within the Microsoft Edge browser interface. Because the weakness is classified as [CWE-451], the browser can render or represent security-relevant information in a way that misleads the user. Successful exploitation requires the victim to interact with attacker-controlled content, such as visiting a crafted web page or clicking a malicious link. The impact is limited to integrity, meaning an attacker can alter what the user perceives without directly reading data or disabling browser functionality.
Root Cause
The root cause is improper representation of critical UI or security information within Microsoft Edge. Under specific conditions, the browser presents attacker-supplied content in a manner that appears trusted or authoritative. Microsoft has not published detailed root-cause internals for this issue beyond the advisory reference.
Attack Vector
The attack vector is network-based and requires user interaction. An attacker hosts crafted content on a web page or delivers it through an embedded resource. When a victim using an unpatched version of Microsoft Edge visits or interacts with the content, the browser renders spoofed UI or navigation elements. This positioning is commonly leveraged in phishing and social engineering chains. No authentication or elevated privileges are required from the attacker.
No public proof-of-concept exploit is currently referenced for CVE-2024-38093. Refer to the Microsoft Security Response Center advisory for vendor-provided technical guidance.
Detection Methods for CVE-2024-38093
Indicators of Compromise
- Users reporting unexpected or misleading browser UI elements, address bar content, or dialog boxes while browsing.
- Web traffic to newly registered or low-reputation domains that closely imitate legitimate brands, followed by credential submission events.
- Increased user reports of phishing pages that appeared to be trusted sites within Microsoft Edge.
Detection Strategies
- Inventory Microsoft Edge versions across managed endpoints and flag installations below the fixed build referenced in the Microsoft advisory.
- Correlate browser process telemetry with DNS and proxy logs to identify sessions that render attacker-controlled content followed by credential entry.
- Deploy phishing-aware URL and content inspection at web gateways to block known spoofing infrastructure.
Monitoring Recommendations
- Enable browser telemetry forwarding to a centralized log platform for review of navigation and download events.
- Monitor Microsoft Edge update compliance through endpoint management tooling and alert on stale versions.
- Track user-reported phishing submissions and correlate them with recent Edge browsing activity for affected users.
How to Mitigate CVE-2024-38093
Immediate Actions Required
- Update Microsoft Edge (Chromium-based) to the latest stable channel release across all managed devices.
- Verify that automatic updates for Microsoft Edge are enabled and not blocked by group policy or network restrictions.
- Reinforce phishing awareness training that emphasizes verification of URLs and certificate details before submitting credentials.
Patch Information
Microsoft has released an updated build of Microsoft Edge that addresses CVE-2024-38093. Refer to the Microsoft Security Response Center advisory for the specific fixed version and deployment guidance.
Workarounds
- Restrict browsing to trusted domains through web content filtering while patches are deployed.
- Use enterprise policy to enforce SmartScreen and enhanced security modes in Microsoft Edge.
- Isolate high-risk browsing activity within dedicated browser profiles or virtualized sessions until endpoints are updated.
# Verify Microsoft Edge version on Windows via PowerShell
(Get-Item "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe").VersionInfo.ProductVersion
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
