8.1
High
CVE-2026-45503 Improper authorization in Microsoft Exchange Server allows an authorized attacker to disclose information over a network
Description
Improper authorization in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
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 Information Disclosure Vulnerability msrc.microsoft.com
Timeline
- Published
- Last modified
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