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This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
Current Description
Improper authorization in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
Metrics
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CVE Modified by Microsoft Corporation7/28/2026 7:16:58 PM
Action
Type
Old Value
New Value
Changed
Affected
[{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 23","platforms":["x64-based Systems"],"versions":[{"version":"15.01.0.0","lessThan":"15.01.2507.069","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 14","platforms":["x64-based Systems"],"versions":[{"version":"15.02.0.0","lessThan":"15.02.1544.041","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 15","platforms":["x64-based Systems"],"versions":[{"version":"15.02.0.0","lessThan":"15.02.1748.046","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server Subscription Edition RTM","platforms":["x64-based Systems"],"versions":[{"version":"15.02.0.0","lessThan":"15.02.2562.043","versionType":"custom","status":"affected"}]}]
[{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 23","platforms":["x64-based Systems"],"versions":[{"version":"15.01.0.0","lessThan":"15.01.2507.071","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 14","platforms":["x64-based Systems"],"versions":[{"version":"15.02.0.0","lessThan":"15.02.1544.043","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 15","platforms":["x64-based Systems"],"versions":[{"version":"15.02.0.0","lessThan":"15.02.1748.048","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server Subscription Edition RTM","platforms":["x64-based Systems"],"versions":[{"version":"15.02.0.0","lessThan":"15.02.2562.045","versionType":"custom","status":"affected"}]}]
CVE Translated by NIST7/23/2026 4:10:00 AM
Action
Type
Old Value
New Value
Added
Translation
Title: varias versiones de Microsoft Exchange Server, Description: Falsificación de petición del lado del servidor (SSRF) en Microsoft Exchange Server permite a un atacante autorizado divulgar información a través de una red.
CVE Modified by Microsoft Corporation7/08/2026 8:17:16 PM
Action
Type
Old Value
New Value
Changed
Description
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
Improper authorization in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
CVE Modified by Microsoft Corporation6/17/2026 6:52:10 AM
Action
Type
Old Value
New Value
Added
Affected
[{"vendor":"Microsoft","product":"Microsoft Exchange Server 2016 Cumulative Update 23","platforms":["x64-based Systems"],"versions":[{"version":"15.01.0.0","lessThan":"15.01.2507.069","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 14","platforms":["x64-based Systems"],"versions":[{"version":"15.02.0.0","lessThan":"15.02.1544.041","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server 2019 Cumulative Update 15","platforms":["x64-based Systems"],"versions":[{"version":"15.02.0.0","lessThan":"15.02.1748.046","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft Exchange Server Subscription Edition RTM","platforms":["x64-based Systems"],"versions":[{"version":"15.02.0.0","lessThan":"15.02.2562.043","versionType":"custom","status":"affected"}]}]
Initial Analysis by NIST6/15/2026 3:23:47 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Added
CWE
CWE-918
Added
CPE Configuration
OR
*cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_23:*:*:*:*:*:*
*cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_14:*:*:*:*:*:*
*cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_15:*:*:*:*:*:*
*cpe:2.3:a:microsoft:exchange_server_subscription_edition:*:*:*:*:*:*:*:* versions up to (excluding) 15.02.2562.043
Added
Reference Type
Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45503 Types: Vendor Advisory
CVE Modified by Microsoft Corporation6/09/2026 7:16:55 PM
Action
Type
Old Value
New Value
Changed
Description
Improper authorization in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
CVE Modified by Microsoft Corporation6/09/2026 2:16:54 PM
Action
Type
Old Value
New Value
Changed
Description
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
Improper authorization in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
New CVE Received from Microsoft Corporation6/09/2026 1:17:26 PM
Action
Type
Old Value
New Value
Added
Description
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
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