VDB
CVE-2026-69378
CVE-2026-69378
PUBLISHED
CVSS 7.5 HIGH
Reported by microsoft · Published September 8, 2026
Uncontrolled recursion in Microsoft Exchange Server allows an unauthorized attacker to deny service over a network.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 23 | 15.01.0.0 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 14 | 15.02.0.0 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 15 | 15.02.0.0 |
| Microsoft | Microsoft Exchange Server Subscription Edition RTM | 15.02.0.0 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 14 | 15.02.0.0 |
| microsoft | exchange_server_2016 | 15.01.0.0 |
| Microsoft | Microsoft Exchange Server Subscription Edition RTM | 15.02.0.0 |
| microsoft | exchange_server_2019 | 15.02.0.0, 15.02.0.0 |
| microsoft | exchange_server_se | 15.02.0.0 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 15 | 15.02.0.0 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 23 | 15.01.0.0 |
Timeline
- Sep 8, 2026 CVE Published
- Sep 8, 2026 CVE Updated
- Sep 9, 2026 Coalition ESS Score
- Sep 9, 2026 Security Advisory
References
- Microsoft Exchange Server Denial of Service Vulnerability vendor-advisorypatch