CVE-2026-45504
Microsoft Exchange Server Elevation of Privilege Vulnerability
HIGH 8.8EPSS 0.8%
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
- Affected
- Microsoft · Microsoft Exchange Server 2016 Cumulative Update 23 · Microsoft Exchange Server 2019 Cumulative Update 14 · Microsoft Exchange Server 2019 Cumulative Update 15 · Microsoft Exchange Server Subscription Edition RTM
- CVSS v3.1 MICROSOFT
- 8.8 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS
- 0.78% chance of exploitation in the next 30 days, 55th percentile
- Published
- 2026-06-09
- Updated
- 2026-09-24
Proof-of-concept exploits (1)
- hawktrace/CVE-2026-4550464★ · 2026-06-24