// For flags

CVE-2023-36757

Microsoft Exchange Server Spoofing Vulnerability

Severity Score

8.0
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Microsoft Exchange Server Spoofing Vulnerability

Vulnerabilidad de SuplantaciĆ³n de Identidad de Microsoft Exchange Server

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Microsoft Exchange. Authentication is required to exploit this vulnerability.
The specific flaw exists within the lack of protection against deserialization of the ExFileLog class. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

*Credits: Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-06-27 CVE Reserved
  • 2023-09-12 CVE Published
  • 2024-06-02 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-502: Deserialization of Untrusted Data
CAPEC
References (1)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Microsoft
Search vendor "Microsoft"
Exchange Server
Search vendor "Microsoft" for product "Exchange Server"
2016
Search vendor "Microsoft" for product "Exchange Server" and version "2016"
cumulative_update_23
Affected
Microsoft
Search vendor "Microsoft"
Exchange Server
Search vendor "Microsoft" for product "Exchange Server"
2019
Search vendor "Microsoft" for product "Exchange Server" and version "2019"
cumulative_update_12
Affected
Microsoft
Search vendor "Microsoft"
Exchange Server
Search vendor "Microsoft" for product "Exchange Server"
2019
Search vendor "Microsoft" for product "Exchange Server" and version "2019"
cumulative_update_13
Affected