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CVE-2025-53782

Incorrect implementation of authentication algorithm in Microsoft Exchange Server allows an unauthorized attacker to elevate privileges locally.

Severity
High 7.8
Published
14 Oct 2025
Last changed
18 Oct 2026
Added to UpHeron
1 Nov 2026
Fixed in
15.02.2562.029
Sources
NVD

Affected software

SoftwareAffected versions
Microsoft Exchange ServerServers and applications · cpe:a:microsoft:exchange_server
  • Version 2019-cumulative_update_13
  • Version 2019-cumulative_update_12
  • Version 2019-cumulative_update_11
  • Version 2019-cumulative_update_10
All 37 release lines
  • Version 2016
  • Version 2016-cumulative_update_1
  • Version 2016-cumulative_update_2
  • Version 2016-cumulative_update_3
  • Version 2016-cumulative_update_4
  • Version 2016-cumulative_update_5
  • Version 2016-cumulative_update_6
  • Version 2016-cumulative_update_7
  • Version 2016-cumulative_update_8
  • Version 2016-cumulative_update_9
  • Version 2016-cumulative_update_10
  • Version 2016-cumulative_update_11
  • Version 2016-cumulative_update_12
  • Version 2016-cumulative_update_13
  • Version 2016-cumulative_update_14
  • Version 2016-cumulative_update_15
  • Version 2016-cumulative_update_16
  • Version 2016-cumulative_update_17
  • Version 2016-cumulative_update_18
  • Version 2016-cumulative_update_19
  • Version 2016-cumulative_update_20
  • Version 2016-cumulative_update_21
  • Version 2016-cumulative_update_22
  • Version 2019
  • Version 2019-cumulative_update_1
  • Version 2019-cumulative_update_2
  • Version 2019-cumulative_update_3
  • Version 2019-cumulative_update_4
  • Version 2019-cumulative_update_5
  • Version 2019-cumulative_update_6
  • Version 2019-cumulative_update_7
  • Version 2019-cumulative_update_8
  • Version 2019-cumulative_update_9
  • Version 2019-cumulative_update_10
  • Version 2019-cumulative_update_11
  • Version 2019-cumulative_update_12
  • Version 2019-cumulative_update_13
Microsoft Exchange ServerServers and applications · cpe:a:microsoft:exchange_server_subscription_edition
  • Every version before 15.02.2562.029

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-53782
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-53782