# CVE-2026-69375

## Summary

- **CVE ID:** CVE-2026-69375
- **Severity:** MEDIUM
- **CVSS Score:** 6.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)
- **CWE:** CWE-639
- **Published:** Sep 8, 2026
- **Last Modified:** Sep 18, 2026

## Description

Authorization bypass through user-controlled key in Microsoft Exchange Server allows an authorized attacker to perform tampering over a network.

## Affected Products

- Microsoft — Microsoft Exchange Server 2016 Cumulative Update 23 (15.01.0.0)
- Microsoft — Microsoft Exchange Server 2019 Cumulative Update 14 (15.02.0.0)
- Microsoft — Microsoft Exchange Server 2019 Cumulative Update 15 (15.02.0.0)
- Microsoft — Microsoft Exchange Server Subscription Edition RTM (15.02.0.0)

## References

- [CNA](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69375)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.59%
- **EPSS Percentile:** 46.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._