CVE-2026-69382
HIGHDescription
Use of a broken or risky cryptographic algorithm in Microsoft Exchange Server allows an unauthorized attacker to disclose information over a network.
How to fix
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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
Exploit Intelligence
Low risk: more likely to be exploited than 38% of all known CVEs.
References
Related Vulnerabilities
Other CWE-327 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2013-2566 | Medium | 5.9 | 84% | - | Fix |
| CVE-2015-2808 | Low | 3.7 | 74% | - | Fix |
| CVE-2023-34039 | Critical | 9.8 | 67% | - | Fix |
| CVE-2016-6602 | Critical | 9.8 | 55% | - | - |
| CVE-2014-8687 | Critical | 9.8 | 44% | - | - |
| CVE-2020-13777 | High | 7.4 | 18% | - | Fix |
Common questions
How do I fix CVE-2026-69382?
Published advisories record a fix for 4 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.
Is CVE-2026-69382 being actively exploited?
Not that we know of. CVE-2026-69382 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.44% is the estimated probability that it will be exploited in the next 30 days. That is higher than 38% of all scored CVEs.
How severe is CVE-2026-69382?
CVE-2026-69382 has a CVSS v3 base score of 5.9, rated important. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2026-69382 affect?
Published advisories record a fix for Microsoft Exchange Server 2016 Cumulative Update 23 (Microsoft), Microsoft Exchange Server 2019 Cumulative Update 14 (Microsoft), Microsoft Exchange Server 2019 Cumulative Update 15 (Microsoft), Microsoft Exchange Server Subscription Edition RTM (Microsoft). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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Markdown
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-08.