Remote information disclosure requiring user interaction
Published Jun 30, 2023 · Updated Apr 14, 2025
Information disclosure in Microsoft Edge (Chromium-based) before 95.0.1020.30 allows remote attackers to read data via crafted web content. Microsoft has not published the affected component or the operation that mishandles untrusted content. Exploitation requires a user to open attacker-controlled content; the documented consequence is limited to confidentiality loss.
Summary
What happened
Information disclosure in Microsoft Edge (Chromium-based) before 95.0.1020.30 allows remote attackers to read data via crafted web content. Microsoft has not published the affected component or the operation that mishandles untrusted content. Exploitation requires a user to open attacker-controlled content; the documented consequence is limited to confidentiality loss.
The record
- CVE
- CVE-2021-42307
- Published
- Jun 30, 2023
- Updated
- Apr 14, 2025
- Vendor
- Microsoft
- Product
- Microsoft Edge (Chromium-based)
- Classifications
- T1189
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 30, 2023CVE publishedPublication date reported by the CVE source.
- Apr 14, 2025Record 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 <95.0.1020.30
What conditions does exploitation require?
What is affected?
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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