Riskcovery

CVE-2025-59248

Microsoft Exchange Server Spoofing Vulnerability

State
Published
Severity
7.5 High
Published
Oct 14, 2025
Updated
Feb 22, 2026
Reserved
Sep 11, 2025

Read the record on cve.org

Description

Improper input validation in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.

Scores

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

Weaknesses

  • CWE-20 Improper Input Validation

Affected Products

ProductVersions
Microsoft Exchange Server 2016 Cumulative Update 23Microsoft
  • 15.01.0.0 to before 15.01.2507.061Affected
Microsoft Exchange Server 2019 Cumulative Update 14Microsoft
  • 15.02.0.0 to before 15.02.1544.036Affected
Microsoft Exchange Server 2019 Cumulative Update 15Microsoft
  • 15.02.0.0 to before 15.02.1748.039Affected
Microsoft Exchange Server Subscription Edition RTMMicrosoft
  • 15.02.0.0 to before 15.02.2562.029Affected

References

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