Description
Incorrect implementation of authentication algorithm in Microsoft Exchange Server allows an unauthorized attacker to elevate privileges locally.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 23 | 15.01.0.0 – < 15.01.2507.061 | 15.01.2507.061 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 14 | 15.02.0.0 – < 15.02.1544.036 | 15.02.1544.036 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 15 | 15.02.0.0 – < 15.02.1748.039 | 15.02.1748.039 |
| Microsoft | Microsoft Exchange Server Subscription Edition RTM | 15.02.0.0 – < 15.02.2562.029 | 15.02.2562.029 |
Advisories 3
- WID-SEC-2025-2280 Microsoft Exchange: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 14, 2025
- NCSC-2025-0312 Kwetsbaarheden verholpen in Microsoft Exchange NCSC-NL (Netherlands) · Oct 14, 2025
- MSRC-CVE-2025-53782 Microsoft Exchange Server Elevation of Privilege Vulnerability Microsoft Security Response Center · Oct 14, 2025
References
- Microsoft Exchange Server Elevation of Privilege Vulnerability vendor-advisory patch