Description
Improper authorization in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 23 | 15.01.0.0 – < 15.01.2507.071 | 15.01.2507.071 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 14 | 15.02.0.0 – < 15.02.1544.043 | 15.02.1544.043 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 15 | 15.02.0.0 – < 15.02.1748.048 | 15.02.1748.048 |
| Microsoft | Microsoft Exchange Server Subscription Edition RTM | 15.02.0.0 – < 15.02.2562.045 | 15.02.2562.045 |
Advisories 4
- WID-SEC-2026-1849 Microsoft Windows: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 17, 2026
- WID-SEC-2026-1846 Microsoft Exchange: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 24, 2026
- NCSC-2026-0185 Kwetsbaarheden verholpen in Microsoft Exchange NCSC-NL (Netherlands) · Jun 9, 2026
- MSRC-CVE-2026-45503 Microsoft Exchange Server Information Disclosure Vulnerability Microsoft Security Response Center · Jun 9, 2026
References
- Microsoft Exchange Server Information Disclosure Vulnerability vendor-advisory patch