CVE-2025-53782

Incorrect implementation of authentication algorithm in Microsoft Exchange Server allows an unauthorized attacker to elevate privileges locally.

Score

CVSS 3.1 8.4 High

Status

Analyzed - secure@microsoft.com

Published

2025-10-14

Last modified

2026-10-18

Weaknesses

CWE-303

Affected products

• Exchange Server (Microsoft)
• Exchange Server 2016 (Microsoft)
• Exchange Server 2019 (Microsoft)
• Exchange Server Se (Microsoft)
• Exchange Server Subscription Edition (Microsoft)

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53782