Authenticated privilege escalation
Published Nov 9, 2022 · Updated Aug 10, 2026
Privilege escalation in Microsoft Exchange Server 2013, 2016, and 2019 allows remote authenticated users to gain elevated access. Microsoft has not disclosed the affected component or the incorrect operation that processes attacker-controlled input. The flaw is network-reachable with low-privileged credentials and enables remote code execution when chained with CVE-2022-41082, while its standalone privilege boundary remains undisclosed.
Summary
What happened
Privilege escalation in Microsoft Exchange Server 2013, 2016, and 2019 allows remote authenticated users to gain elevated access. Microsoft has not disclosed the affected component or the incorrect operation that processes attacker-controlled input. The flaw is network-reachable with low-privileged credentials and enables remote code execution when chained with CVE-2022-41082, while its standalone privilege boundary remains undisclosed.
The record
- CVE
- CVE-2022-41080
- Published
- Nov 9, 2022
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Microsoft Exchange Server 2019 Cumulative Update 12
- Classifications
- T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 9, 2022CVE publishedPublication date reported by the CVE source.
- Dec 1, 2022Exploitation reportedOWASSRF ransomware deployment
- Aug 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=15.02.0 <15.02.1118.020
What conditions does exploitation require?
What is affected?
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
- OWASSRF Exchange exploit chainfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
- CISA Known Exploited Vulnerabilities entryknown exploited catalog
- OWASSRF ransomware deploymentransomware
Technologies
Your stack
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Your stack
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