Unauthenticated spoofing of critical browser information
Published May 12, 2026 · Updated May 12, 2026
UI misrepresentation in Microsoft Edge for Android before 148.0.3967.55 allows remote attackers to spoof critical browser information. Microsoft has not disclosed the affected interface element or how attacker-controlled network content is rendered as trusted browser information. The attack requires no authentication or user interaction but has high complexity; successful exploitation exposes confidential information and permits limited data modification without interrupting service.
Summary
What happened
UI misrepresentation in Microsoft Edge for Android before 148.0.3967.55 allows remote attackers to spoof critical browser information. Microsoft has not disclosed the affected interface element or how attacker-controlled network content is rendered as trusted browser information. The attack requires no authentication or user interaction but has high complexity; successful exploitation exposes confidential information and permits limited data modification without interrupting service.
The record
- CVE
- CVE-2026-42891
- Published
- May 12, 2026
- Updated
- May 12, 2026
- Vendor
- Microsoft
- Product
- Microsoft Edge for Android
- Classifications
- CWE-451
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 12, 2026CVE publishedPublication date reported by the CVE source.
- May 12, 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 <148.0.3967.55
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.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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