// For flags

CVE-2021-42979

 

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

NoMachine Cloud Server is affected by Integer Overflow. IOCTL Handler 0x22001B in the NoMachine Cloud Server above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.

NoMachine Cloud Server está afectado por un desbordamiento de enteros. IOCTL Handler 0x22001B en NoMachine Cloud Server versiones posteriores de 4.0.346 y anteriores a 7.7.4, permite a atacantes locales ejecutar código arbitrario en modo kernel o causar una denegación de servicio (corrupción de memoria y bloqueo del Sistema Operativo) por medio de un paquete de petición de E/S especialmente diseñado

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-10-25 CVE Reserved
  • 2021-12-07 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-190: Integer Overflow or Wraparound
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Nomachine
Search vendor "Nomachine"
 Cloud Server
Search vendor "Nomachine" for product "Cloud Server"
 > 4.0.346 < 7.7.4
Search vendor "Nomachine" for product "Cloud Server" and version " > 4.0.346 < 7.7.4"
-
Affected