CVE-2026-77903

8.1 highEPSS 0.4%

High (8.1) in microsoft dataverse. EPSS 0.4% chance of exploitation in the next 30 days.

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

Severity

8.1 high

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

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-31)
CWE: CWE-290
Published: 2026-09-17
Modified: 2026-09-25
Record from: the NVD, synced 2026-10-19