What’s Vulnerable › Vulnerabilities

CVE-2022-34692: Microsoft Exchange Server Information Disclosure Vulnerability

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-08-09 · updated 2026-06-17
• Weakness: CWE-200

Description

Microsoft Exchange Server Information Disclosure Vulnerability

Affected products

• Microsoft Exchange Server: 2016-cumulative_update_22, 2016-cumulative_update_23, 2019-cumulative_update_11, 2019-cumulative_update_12
• Microsoft Exchange Server 2016 Cumulative Update 22: from 15.0.0 before 15.01.2375.031 — fixed in 15.01.2375.031
• Microsoft Exchange Server 2016 Cumulative Update 23: from 15.01.0 before 15.01.2507.012 — fixed in 15.01.2507.012
• Microsoft Exchange Server 2019 Cumulative Update 11: from 15.02.0 before 15.02.0986.029 — fixed in 15.02.0986.029
• Microsoft Exchange Server 2019 Cumulative Update 12: from 15.02.0 before 15.02.1118.012 — fixed in 15.02.1118.012

How to fix

Upgrade to a fixed version: Microsoft Exchange Server 2016 Cumulative Update 22 15.01.2375.031; Microsoft Exchange Server 2016 Cumulative Update 23 15.01.2507.012; Microsoft Exchange Server 2019 Cumulative Update 11 15.02.0986.029; Microsoft Exchange Server 2019 Cumulative Update 12 15.02.1118.012. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-34692
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-34692

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