Tampering via undisclosed alternate authentication path
Published Jul 17, 2026 · Updated Jul 17, 2026
Authentication bypass in Microsoft Edge (Chromium-based) before 150.0.4078.80 allows remote attackers to tamper with data over a network. Microsoft identifies an alternate authentication path or channel but has not disclosed the affected component or incorrect trust decision. Successful exploitation requires user interaction and lets the attacker read and modify some data without interrupting the browser service.
Summary
What happened
Authentication bypass in Microsoft Edge (Chromium-based) before 150.0.4078.80 allows remote attackers to tamper with data over a network. Microsoft identifies an alternate authentication path or channel but has not disclosed the affected component or incorrect trust decision. Successful exploitation requires user interaction and lets the attacker read and modify some data without interrupting the browser service.
The record
- CVE
- CVE-2026-57980
- Published
- Jul 17, 2026
- Updated
- Jul 17, 2026
- Vendor
- Microsoft
- Product
- Microsoft Edge (Chromium-based)
- Classifications
- CWE-288
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 17, 2026CVE publishedPublication date reported by the CVE source.
- Jul 17, 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 <150.0.4078.80
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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