CVE-2026-77903

CRITICAL9.0

Published 2026-09-17 · Source secure@microsoft.com

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

CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

CWE-290

Same severity, most recent

CVE-2026-87701
Improper neutralization of special elements in output used by a downstream component ('injection') in Azure Cosmos DB allows an authorized attacker to elevate privileges over a network.
2026-09-17 · score 9.6
CVE-2026-85889
Missing authentication for critical function in Azure AI Foundry allows an unauthorized attacker to elevate privileges over a network.
2026-09-17 · score 10.0
CVE-2026-85885
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an authorized attacker to elevate privileges over a network.
2026-09-17 · score 9.9
CVE-2026-83944
Improper access control in Azure Logic Apps allows an unauthorized attacker to elevate privileges over a network.
2026-09-17 · score 10.0
CVE-2026-70200
Improper limitation of a pathname to a restricted directory ('path traversal') in Azure Logic Apps allows an unauthorized attacker to elevate privileges over a network.
2026-09-17 · score 10.0