CVE-2026-77903
Medium
Elevated severity or exploit probability.
CVSS base
9.0
CRITICAL
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.7%
49.8th percentile
CISA KEV
Not listed
Weakness / dates
CWE-290
Published 2026-09-17 · modified 2026-09-19
Description
Authentication bypass by spoofing in Microsoft Dataverse allows an unauthorized attacker to elevate privileges over a network.