CVE-2026-96940

EUVD-2026-91771
Weak authorization in Microsoft Exchange Server allows an authenticated attacker to elevate privileges over a network.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
microsoftexchange_server
15.2.0.0 ≤
𝑥
< 15.2.1544.48
microsoftexchange_server
15.1.0.0 ≤
𝑥
< 15.1.2507.75
microsoftexchange_server
15.2.0.0 ≤
𝑥
< 15.2.1748.53
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96940