CVE-2026-45501

MEDIUM

Microsoft Exchange Server Spoofing Vulnerability

Title source: cna
STIX 2.1

Description

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

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
Microsoft Exchange Server Spoofing Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45501

Scores

CVSS v3 6.5
EPSS 0.0031
EPSS Percentile 23.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79 CWE-918
Status published
Products (11)
microsoft/exchange_server 2016 cumulative_update_23
microsoft/exchange_server 2019 cumulative_update_14 (2 CPE variants)
microsoft/exchange_server_subscription_edition < 15.02.2562.043
Microsoft/Microsoft Exchange Server 2016 Cumulative Update 23 15.01.0.0 - 15.01.2507.069
Microsoft/Microsoft Exchange Server 2016 Cumulative Update 23 15.01.0.0 - 15.01.2507.071
Microsoft/Microsoft Exchange Server 2019 Cumulative Update 14 15.02.0.0 - 15.02.1544.041
Microsoft/Microsoft Exchange Server 2019 Cumulative Update 14 15.02.0.0 - 15.02.1544.043
Microsoft/Microsoft Exchange Server 2019 Cumulative Update 15 15.02.0.0 - 15.02.1748.046
Microsoft/Microsoft Exchange Server 2019 Cumulative Update 15 15.02.0.0 - 15.02.1748.048
Microsoft/Microsoft Exchange Server Subscription Edition RTM 15.02.0.0 - 15.02.2562.043
... and 1 more
Published Jun 09, 2026
Tracked Since Jun 09, 2026