Memory disclosure via undisclosed out-of-bounds write
Published Sep 19, 2024 · Updated Aug 10, 2026
Out-of-bounds write in Microsoft Edge before 129.0.2792.52 allows remote attackers to disclose memory through crafted web content. Microsoft identifies the weakness class but has not disclosed the affected component, buffer, or unchecked operation that writes beyond its bounds. A user must open the attacker-controlled content; Microsoft reports confidentiality impact without integrity or availability impact.
Summary
What happened
Out-of-bounds write in Microsoft Edge before 129.0.2792.52 allows remote attackers to disclose memory through crafted web content. Microsoft identifies the weakness class but has not disclosed the affected component, buffer, or unchecked operation that writes beyond its bounds. A user must open the attacker-controlled content; Microsoft reports confidentiality impact without integrity or availability impact.
The record
- CVE
- CVE-2024-43496
- Published
- Sep 19, 2024
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Microsoft Edge (Chromium-based)
- Classifications
- CWE-787, T1189
- 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.
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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