// For flags

CVE-2023-21547

Internet Key Exchange (IKE) Protocol Denial of Service Vulnerability

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Internet Key Exchange (IKE) Protocol Denial of Service Vulnerability

Vulnerabilidad de denegaciĆ³n de servicio del protocolo de intercambio de claves de Internet (IKE)

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Microsoft Windows. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the IKEEXT service, which listens on UDP ports 500 and 4500. A crafted Vendor ID payload can cause a null pointer dereference. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

*Credits: insu of 78ResearchLab
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-12-01 CVE Reserved
  • 2023-01-10 CVE Published
  • 2024-05-29 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
  • CWE-476: NULL Pointer Dereference
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"
Windows 10 1607
Search vendor "Microsoft" for product "Windows 10 1607"
-x64
Affected
Microsoft
Search vendor "Microsoft"
Windows 10 1607
Search vendor "Microsoft" for product "Windows 10 1607"
-x86
Affected
Microsoft
Search vendor "Microsoft"
Windows 10 1809
Search vendor "Microsoft" for product "Windows 10 1809"
-arm64
Affected
Microsoft
Search vendor "Microsoft"
Windows 10 1809
Search vendor "Microsoft" for product "Windows 10 1809"
-x64
Affected
Microsoft
Search vendor "Microsoft"
Windows 10 1809
Search vendor "Microsoft" for product "Windows 10 1809"
-x86
Affected
Microsoft
Search vendor "Microsoft"
Windows 10 21h2
Search vendor "Microsoft" for product "Windows 10 21h2"
-arm64
Affected
Microsoft
Search vendor "Microsoft"
Windows 10 21h2
Search vendor "Microsoft" for product "Windows 10 21h2"
-x64
Affected
Microsoft
Search vendor "Microsoft"
Windows 10 21h2
Search vendor "Microsoft" for product "Windows 10 21h2"
-x86
Affected
Microsoft
Search vendor "Microsoft"
Windows 10 22h2
Search vendor "Microsoft" for product "Windows 10 22h2"
-arm64
Affected
Microsoft
Search vendor "Microsoft"
Windows 10 22h2
Search vendor "Microsoft" for product "Windows 10 22h2"
-x64
Affected
Microsoft
Search vendor "Microsoft"
Windows 10 22h2
Search vendor "Microsoft" for product "Windows 10 22h2"
-x86
Affected
Microsoft
Search vendor "Microsoft"
Windows 11 21h2
Search vendor "Microsoft" for product "Windows 11 21h2"
-arm64
Affected
Microsoft
Search vendor "Microsoft"
Windows 11 21h2
Search vendor "Microsoft" for product "Windows 11 21h2"
-x64
Affected
Microsoft
Search vendor "Microsoft"
Windows 11 22h2
Search vendor "Microsoft" for product "Windows 11 22h2"
-arm64
Affected
Microsoft
Search vendor "Microsoft"
Windows 11 22h2
Search vendor "Microsoft" for product "Windows 11 22h2"
-x64
Affected
Microsoft
Search vendor "Microsoft"
Windows Server 2016
Search vendor "Microsoft" for product "Windows Server 2016"
--
Affected
Microsoft
Search vendor "Microsoft"
Windows Server 2019
Search vendor "Microsoft" for product "Windows Server 2019"
--
Affected
Microsoft
Search vendor "Microsoft"
Windows Server 2022
Search vendor "Microsoft" for product "Windows Server 2022"
--
Affected