Edge WebUI permission disclosure via incorrect defaults
Published Sep 12, 2024 · Updated Aug 10, 2026
Information disclosure in Microsoft Edge (Chromium-based) before 128.0.2739.42 allows remote attackers to read Edge WebUI permissions. Microsoft identifies incorrect default permissions as the weakness but has not published the faulty permission check or request path. Exploitation requires user interaction; the reported consequence is disclosure of WebUI permission data, with no integrity or availability impact.
Summary
What happened
Information disclosure in Microsoft Edge (Chromium-based) before 128.0.2739.42 allows remote attackers to read Edge WebUI permissions. Microsoft identifies incorrect default permissions as the weakness but has not published the faulty permission check or request path. Exploitation requires user interaction; the reported consequence is disclosure of WebUI permission data, with no integrity or availability impact.
The record
- CVE
- CVE-2024-38222
- Published
- Sep 12, 2024
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Microsoft Edge (Chromium-based)
- Classifications
- CWE-276, T1185
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 12, 2024CVE publishedPublication date reported by the CVE source.
- Aug 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.0.0 <128.0.2739.42
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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