CVE-2026-69382 Microsoft Exchange Server Information Disclosure Vulnerability
An attacker can disclose information over a network due to the use of a broken cryptographic algorithm in Microsoft Exchange Server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-69382?
CVE-2026-69382 is a medium-severity vulnerability in Microsoft Exchange Server, published on 8 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Use of a broken or risky cryptographic algorithm in Microsoft Exchange Server allows an unauthorized attacker to disclose information over a network.
Weakness: CWE-327
Which versions are affected by CVE-2026-69382?
It affects 2 products.
Products include Microsoft Exchange Server, Microsoft Exchange Server Subscription Edition.
How do I fix CVE-2026-69382?
No fix has been published for CVE-2026-69382 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-69382 being exploited?
There is no known exploitation of CVE-2026-69382 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Exchange Server
- CVE-2024-21410 Microsoft Exchange Server Privilege Escalation
- CVE-2021-34473 Microsoft Exchange Server Remote Code Execution
- CVE-2021-26855 Microsoft Exchange Server Remote Code Execution
- CVE-2021-34523 Microsoft Exchange Server Privilege Escalation
- CVE-2023-21529 Microsoft Exchange Server Deserialization of Untrusted Data
Sources
Also known as GHSA-39fx-jcrv-m48p.