CVE-2026-77903

Authentication bypass by spoofing in Microsoft Dataverse allows an unauthorized attacker to elevate privileges over a network.

CVSS v3 9.0 CRITICAL

9.0^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.2 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77903	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:microsoft:dataverse:-:*:*:*:*:*:*:*

History

25 Sep 2026, 20:05

Type	Values Removed	Values Added
First Time		Microsoft Microsoft dataverse
CPE		cpe:2.3:a:microsoft:dataverse:-:::::::*
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77903 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77903 - Vendor Advisory

17 Sep 2026, 23:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-17 23:18

Updated : 2026-09-25 20:05

NVD link : CVE-2026-77903

Mitre link : CVE-2026-77903

CVE.ORG link : CVE-2026-77903

JSON object : View

Products Affected

microsoft

dataverse

CWE

CWE-290

Authentication Bypass by Spoofing

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