CVE-2026-69382: Microsoft Exchange Server Information Disclosure Vulnerability
Published Sep 8, 2026
·Updated
Microsoft Exchange Server Information Disclosure Vulnerability
Other sources
Use of a broken or risky cryptographic algorithm in Microsoft Exchange Server allows an unauthorized attacker to disclose information over a network.
— Microsoft
Affected Software
9 affected componentsFixes available
Microsoft Exchange Server
Microsoft Exchange Server 2019=14
15.02.1544.046
Microsoft Exchange Server 2019=15
15.02.1748.051
Microsoft Exchange Server 2016=23
15.01.2507.073
Microsoft Exchange Server Subscription Edition RTM<15.02.2562.049
15.02.2562.049
Microsoft Exchange Server=2016-cumulative_update_23
Microsoft Exchange Server=2019-cumulative_update_14
Microsoft Exchange Server=2019-cumulative_update_15
Microsoft Exchange Server Subscription Edition<15.02.2562.049
Remediation
Event History
Sep 8, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·05:12 PM
Data Sourced
via MITRE·05:12 PM
DescriptionSeverity
Data Sourced
via NVD·06:18 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What level of access does an attacker need to exploit this issue?
The vulnerability is described as exploitable by an unauthorized attacker over a network. No prior privileges or user interaction are indicated in the supplied severity vector.
2
What is the expected impact if exploitation succeeds?
Successful exploitation may disclose information. The supplied severity vector indicates high confidentiality impact, with no stated integrity or availability impact.
3
How difficult is exploitation expected to be?
The severity vector rates attack complexity as high. This suggests exploitation requires conditions beyond simply reaching the Exchange Server over the network.