SB2025081268 - Multiple vulnerabilities in Microsoft Exchange Server

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Main Vulnerability Database SB2025081268

SB2025081268 - Multiple vulnerabilities in Microsoft Exchange Server

Published: August 12, 2025

Security Bulletin ID SB2025081268
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Improper validation of syntactic correctness of input (CVE-ID: CVE-2025-25007)

CWE-ID: CWE-1286 - Improper Validation of Syntactic Correctness of Input

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to improper input validation. A remote attacker can spoof incorrect 5322.From email address that is displayed to a user.


2) Improper handling of additional special element (CVE-ID: CVE-2025-25006)

CWE-ID: CWE-167 - Improper Handling of Additional Special Element

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to improper input validation. A remote attacker can spoof incorrect 5322.From email address that is displayed to a user.


3) Input validation error (CVE-ID: CVE-2025-25005)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to perform a MitM attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote user can perform data tampering.


4) Information disclosure (CVE-ID: CVE-2025-33051)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application. A remote attacker can gain unauthorized access to sensitive information on the system.


Remediation

Install update from vendor's website.

References