// For flags

CVE-2021-23883

Null Pointer Dereference vulnerability in McAfee Endpoint Security (ENS)

Severity Score

4.4
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A Null Pointer Dereference vulnerability in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 February 2021 Update allows a local administrator to cause Windows to crash via a specific system call which is not handled correctly. This varies by machine and had partial protection prior to this update.

Una vulnerabilidad de Desreferencia del Puntero Null en McAfee Endpoint Security (ENS) para Windows versiones anteriores a actualización 10.7.0 de Febrero de 2021, permite a un administrador local causar a Windows bloquearse por medio de una llamada específica al sistema que no es manejada correctamente. Esto varía según la máquina y tenía protección parcial anterior a esta actualización

*Credits: Alain Rödel from cirosec GmbH
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-01-12 CVE Reserved
  • 2021-02-10 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-09-17 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-476: NULL Pointer Dereference
CAPEC
References (1)
URL Tag Source
https://kc.mcafee.com/corporate/index?page=content&id=SB10345 Broken Link
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mcafee
Search vendor "Mcafee"
 Endpoint Security
Search vendor "Mcafee" for product "Endpoint Security"
 < 10.7.0
Search vendor "Mcafee" for product "Endpoint Security" and version " < 10.7.0"
windows
Affected