7.8
High
CVE-2026-55006 Insufficient granularity of access control in Microsoft Exchange Server allows an authorized attacker to elevate…
Description
Insufficient granularity of access control in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft Exchange Server 2016 Cumulative Update 23 15.01 | 15.01.0.0 → < 15.01.2507.071 | 15.01.2507.071 |
| Microsoft Exchange Server 2019 Cumulative Update 14 15.02 | 15.02.0.0 → < 15.02.1544.043 | 15.02.1544.043 |
| Microsoft Exchange Server 2019 Cumulative Update 15 15.02 | 15.02.0.0 → < 15.02.1748.048 | 15.02.1748.048 |
| Microsoft Exchange Server Subscription Edition RTM 15.02 | 15.02.0.0 → < 15.02.2562.045 | 15.02.2562.045 |
References
- Microsoft Exchange Server Elevation of Privilege Vulnerability msrc.microsoft.com
Timeline
- Published
- Last modified
Other CVEs of Microsoft Exchange Server 2016 Cumulative Update 23
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7.8
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9.3
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7.5
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