Remote code execution via undisclosed integer overflow
Published Nov 12, 2024 · Updated Jul 8, 2025
Integer overflow in Windows Telephony Service on affected Microsoft Windows releases allows remote attackers to execute code after user interaction. Microsoft identifies CWE-190 but has not published the function, input field, or arithmetic operation whose unchecked result corrupts execution state. Exploitation requires no prior privileges, but a user must interact with attacker-controlled content; successful exploitation grants code execution on the affected system.
Summary
What happened
Integer overflow in Windows Telephony Service on affected Microsoft Windows releases allows remote attackers to execute code after user interaction. Microsoft identifies CWE-190 but has not published the function, input field, or arithmetic operation whose unchecked result corrupts execution state. Exploitation requires no prior privileges, but a user must interact with attacker-controlled content; successful exploitation grants code execution on the affected system.
The record
- CVE
- CVE-2024-43635
- Published
- Nov 12, 2024
- Updated
- Jul 8, 2025
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-190, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 12, 2024CVE publishedPublication date reported by the CVE source.
- Jul 8, 2025Record 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=10.0.10240.0 <10.0.10240.20826
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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