Memory-layout disclosure via NTLM out-of-bounds read
Published May 9, 2023 · Updated Jul 10, 2025
An out-of-bounds read in the Microsoft Windows NTLM SSP allows remote attackers to disclose memory-layout information via crafted NTLM traffic. The NTLM SSP processes attacker-controlled authentication data without adequately validating a buffer boundary, causing a read beyond allocated data; Microsoft has not publicly identified the responsible function or field. Exploitation requires no credentials or user interaction, but the attacker must prepare the target environment to make the high-complexity disclosure reliable, and the reported impact is limited to confidentiality.
Summary
What happened
An out-of-bounds read in the Microsoft Windows NTLM SSP allows remote attackers to disclose memory-layout information via crafted NTLM traffic. The NTLM SSP processes attacker-controlled authentication data without adequately validating a buffer boundary, causing a read beyond allocated data; Microsoft has not publicly identified the responsible function or field. Exploitation requires no credentials or user interaction, but the attacker must prepare the target environment to make the high-complexity disclosure reliable, and the reported impact is limited to confidentiality.
The record
- CVE
- CVE-2023-24900
- Published
- May 9, 2023
- Updated
- Jul 10, 2025
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-125
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 9, 2023CVE publishedPublication date reported by the CVE source.
- Jul 10, 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?
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- Affected versionversion=10.0.10240.0 <10.0.10240.19926
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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