Riskcovery

CVE-2026-69375

Microsoft Exchange Server Tampering Vulnerability

State
Published
Severity
6.5 Medium
Published
Sep 8, 2026
Updated
Oct 31, 2026
Reserved
Aug 3, 2026

Read the record on cve.org

Description

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

Scores

CVSSScoreVectorSource
3.16.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:Cmicrosoft

Weaknesses

  • CWE-639 Authorization Bypass Through User-Controlled Key

Affected Products

ProductVersions
Microsoft Exchange Server 2016 Cumulative Update 23Microsoft
  • 15.01.0.0 to before 15.01.2507.073Affected
Microsoft Exchange Server 2019 Cumulative Update 14Microsoft
  • 15.02.0.0 to before 15.02.1544.046Affected
Microsoft Exchange Server 2019 Cumulative Update 15Microsoft
  • 15.02.0.0 to before 15.02.1748.051Affected
Microsoft Exchange Server Subscription Edition RTMMicrosoft
  • 15.02.0.0 to before 15.02.2562.049Affected

References

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