CVE-2025-53782

Oct. 14, 2025, 7:35 p.m.

8.4
High

Description

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

Product(s) Impacted

Vendor Product Versions
Microsoft
  • Exchange Server
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-303
Incorrect Implementation of Authentication Algorithm
The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a microsoft exchange_server / / / / / / / /

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53782

Tags

CWE-303
secure@microsoft.com
2025-10-14
CVE-2025-53782

CVSS Score

8.4 / 10

CVSS Data - 3.1

  • Attack Vector: LOCAL
  • Attack Complexity: LOW
  • Privileges Required: NONE
  • Scope: UNCHANGED
  • Confidentiality Impact: HIGH
  • Integrity Impact: HIGH
  • Availability Impact: HIGH

    • CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

    View Vector String

Timeline

Published: Oct. 14, 2025, 5:15 p.m.
Last Modified: Oct. 14, 2025, 7:35 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

secure@microsoft.com

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.