8.8
High
Exploited
· ransomware
CVE-2022-41080 Microsoft Exchange Server Privilege Escalation Vulnerability
Active exploitation observed
· CISA KEV catalogue
Required action
Apply updates per vendor instructions.
Ransomware campaigns
Known to be used
Description
Microsoft Exchange Server Elevation of Privilege Vulnerability
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft Exchange Server 2016 Cumulative Update 23 15.01 | 15.01.0 → < 15.01.2507.016 | 15.01.2507.016 |
| Microsoft Exchange Server 2019 Cumulative Update 12 15.02 | 15.02.0 → < 15.02.1118.020 | 15.02.1118.020 |
| Microsoft Exchange Server 2013 Cumulative Update 23 15.00 | 15.00.0 → < 15.00.1497.044 | 15.00.1497.044 |
| Microsoft Exchange Server 2019 Cumulative Update 11 15.02 | 15.02.0 → < 15.02.0986.036 | 15.02.0986.036 |
| Microsoft Exchange Server 2016 Cumulative Update 22 15.0 | 15.0.0 → < 15.01.2375.037 | 15.01.2375.037 |
References
- Microsoft Exchange Server Elevation of Privilege Vulnerability msrc.microsoft.com
Timeline
- Published
- Added to the KEV catalogue
- Last modified
Other CVEs of Microsoft Exchange Server 2016 Cumulative Update 23
The 88 CVEs of Microsoft Exchange Server 2016 Cumulative Update 23 →
CVE-2026-87695
Inclusion of functionality from untrusted control sphere in Microsoft Exchange Server allows an authorized attacker to…
7.8
High
CVE-2026-87692
Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges…
7.8
High
CVE-2026-70279
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows…
9.3
Critical
CVE-2026-87696
Improper verification of cryptographic signature in Microsoft Exchange Server allows an authorized attacker to elevate…
7.5
High