Description
Incorrect authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Microsoft Exchange Online | - | — |
Advisories 3
- NCSC-2026-0234 Kwetsbaarheden verholpen in Microsoft Exchange NCSC-NL (Netherlands) · Jul 14, 2026
- WID-SEC-2026-2191 Microsoft Exchange Online: Schwachstelle ermöglicht Privilegieneskalation BSI CERT-Bund (WID) · Jul 2, 2026
- MSRC-CVE-2026-54998 Microsoft Exchange Online Elevation of Privilege Vulnerability Microsoft Security Response Center · Jul 2, 2026
References
- Microsoft Exchange Online Elevation of Privilege Vulnerability vendor-advisory patch