Code execution via undisclosed type confusion
Published Sep 19, 2024 · Updated Aug 10, 2026
Type confusion in Microsoft Edge before 129.0.2792.52 allows remote attackers to execute code after a user opens a crafted URL. Microsoft has not disclosed the affected Edge component, the resource whose type is confused, or the incompatible access performed on attacker-controlled content. Exploitation requires user interaction with the URL; the vendor reports no data disclosure or service interruption.
Summary
What happened
Type confusion in Microsoft Edge before 129.0.2792.52 allows remote attackers to execute code after a user opens a crafted URL. Microsoft has not disclosed the affected Edge component, the resource whose type is confused, or the incompatible access performed on attacker-controlled content. Exploitation requires user interaction with the URL; the vendor reports no data disclosure or service interruption.
The record
- CVE
- CVE-2024-43489
- Published
- Sep 19, 2024
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Microsoft Edge (Chromium-based)
- Classifications
- CWE-843, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 19, 2024CVE publishedPublication date reported by the CVE source.
- Aug 10, 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 <129.0.2792.52
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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