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CVE-2026-45503

nvd nist
Published: Jun 9, 2026Modified: Jun 17, 2026

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6.5
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Exploitability: 2.8 / Impact: 3.6
Source: NVD

Description

Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.

Affected (4)

Microsoft
2 products
Exchange Server
Exchange Server Subscription Edition
Configuration A
4 vulnerable
Vulnerable SoftwareAffected Versions
Microsoft
Exchange Server
Version 2016 cumulative_update_23
Exchange Server
Version 2019 cumulative_update_14
Exchange Server
Version 2019 cumulative_update_15
Exchange Server Subscription Edition
Before 15.02.2562.043

Related CWEs

CWE-285
Improper Authorization
The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
CWE-918
Server-Side Request Forgery (SSRF)
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

References (1)

Source: secure@microsoft.com
Vendor Advisory

Timeline

No history available yet.