Sensitive-data disclosure via OCSP type confusion
Published Jan 9, 2024 · Updated May 3, 2025
Type confusion in Microsoft Windows Server OCSP allows remote authenticated users with administrative privileges to read sensitive data over a network. Microsoft identifies incompatible-type resource access but has not published the affected code locus, the conflicting types, or the data exposed. Exploitation requires high privileges and no user interaction; integrity and availability are unaffected.
Summary
What happened
Type confusion in Microsoft Windows Server OCSP allows remote authenticated users with administrative privileges to read sensitive data over a network. Microsoft identifies incompatible-type resource access but has not published the affected code locus, the conflicting types, or the data exposed. Exploitation requires high privileges and no user interaction; integrity and availability are unaffected.
The record
- CVE
- CVE-2024-20662
- Published
- Jan 9, 2024
- Updated
- May 3, 2025
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-843
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Jan 9, 2024CVE publishedPublication date reported by the CVE source.
- May 3, 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=10.0.17763.0 <10.0.17763.5329
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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