Content spoofing via attacker-controlled file path
Published Aug 28, 2026 · Updated Aug 29, 2026
Path control in Microsoft Edge (Chromium-based) before 152.0.4191.53 allows remote attackers to spoof content over a network. Microsoft identifies external control of a file name or path but has not disclosed the affected component or the incorrect path-handling operation. Successful exploitation requires user interaction and can expose information through spoofed content, with no reported ability to modify data or interrupt the browser.
Summary
What happened
Path control in Microsoft Edge (Chromium-based) before 152.0.4191.53 allows remote attackers to spoof content over a network. Microsoft identifies external control of a file name or path but has not disclosed the affected component or the incorrect path-handling operation. Successful exploitation requires user interaction and can expose information through spoofed content, with no reported ability to modify data or interrupt the browser.
The record
- CVE
- CVE-2026-66324
- Published
- Aug 28, 2026
- Updated
- Aug 29, 2026
- Vendor
- Microsoft
- Product
- Microsoft Edge (Chromium-based)
- Classifications
- CWE-73
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 28, 2026CVE publishedPublication date reported by the CVE source.
- Aug 29, 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=1.0.0.0 <152.0.4191.53
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.
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Technologies
Your stack
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Your stack
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