Code execution via undisclosed integer overflow
Published Jul 3, 2026 · Updated Jul 3, 2026
Integer overflow in Microsoft Edge (Chromium-based) before 150.0.4078.48 allows remote attackers to execute code via network content. Microsoft has not disclosed the affected component, attacker-controlled input, or arithmetic operation that overflows. Exploitation requires user interaction with network content and can execute code with the privileges of the browser process.
Summary
What happened
Integer overflow in Microsoft Edge (Chromium-based) before 150.0.4078.48 allows remote attackers to execute code via network content. Microsoft has not disclosed the affected component, attacker-controlled input, or arithmetic operation that overflows. Exploitation requires user interaction with network content and can execute code with the privileges of the browser process.
The record
- CVE
- CVE-2026-57974
- Published
- Jul 3, 2026
- Updated
- Jul 3, 2026
- Vendor
- Microsoft
- Product
- Microsoft Edge (Chromium-based)
- Classifications
- CWE-190, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 3, 2026CVE publishedPublication date reported by the CVE source.
- Jul 3, 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 <150.0.4078.48
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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