Adjacent authenticated privilege escalation
Published Oct 13, 2021 · Updated Aug 4, 2024
Improper privilege management in Microsoft Exchange Server 2016 and 2019 allows remote authenticated users to elevate privileges. Microsoft has not published the affected component or the operation that mishandles privileges. Exploitation requires low-privilege access from an adjacent network and can compromise confidentiality, integrity, and availability at the elevated privilege level.
Summary
What happened
Improper privilege management in Microsoft Exchange Server 2016 and 2019 allows remote authenticated users to elevate privileges. Microsoft has not published the affected component or the operation that mishandles privileges. Exploitation requires low-privilege access from an adjacent network and can compromise confidentiality, integrity, and availability at the elevated privilege level.
The record
- CVE
- CVE-2021-41348
- Published
- Oct 13, 2021
- Updated
- Aug 4, 2024
- Vendor
- Microsoft
- Product
- Microsoft Exchange Server 2016 Cumulative Update 21
- Classifications
- CWE-269, T1068
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 13, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record 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 <15.01.2308.015
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.
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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