Authenticated confidential-data disclosure via undisclosed spoofing flaw
Published Mar 9, 2022 · Updated Jul 8, 2025
Spoofing in Microsoft Exchange Server 2016 and 2019 allows remote authenticated users to read confidential data via network requests. Microsoft has not published the affected component or the wrong operation performed on untrusted input. Exploitation requires a low-privileged account; the documented consequence is confidential-data disclosure without integrity or availability impact.
Summary
What happened
Spoofing in Microsoft Exchange Server 2016 and 2019 allows remote authenticated users to read confidential data via network requests. Microsoft has not published the affected component or the wrong operation performed on untrusted input. Exploitation requires a low-privileged account; the documented consequence is confidential-data disclosure without integrity or availability impact.
The record
- CVE
- CVE-2022-24463
- Published
- Mar 9, 2022
- Updated
- Jul 8, 2025
- Vendor
- Microsoft
- Product
- Microsoft Exchange Server 2016 Cumulative Update 21
- Classifications
- Unavailable
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 9, 2022CVE 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=15.01.0 <15.01.2308.027
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
No sourced classifications are available.
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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