// For flags

CVE-2021-1426

Cisco AnyConnect Secure Mobility Client for Windows DLL and Executable Hijacking Vulnerabilities

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

Multiple vulnerabilities in the install, uninstall, and upgrade processes of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to hijack DLL or executable files that are used by the application. A successful exploit could allow the attacker to execute arbitrary code on an affected device with SYSTEM privileges. To exploit these vulnerabilities, the attacker must have valid credentials on the Windows system. For more information about these vulnerabilities, see the Details section of this advisory.

Múltiples vulnerabilidades en los procesos de instalación, desinstalación y actualización de Cisco AnyConnect Secure Mobility Client para Windows, podrían permitir a un atacante local autenticado secuestrar archivos DLL o ejecutables que son usados por la aplicación. Una explotación con éxito podría permitir al atacante ejecutar código arbitrario en un dispositivo afectado con privilegios SYSTEM. Para explotar estas vulnerabilidades, el atacante debe tener credenciales válidas en el sistema Windows. Para mayor información sobre estas vulnerabilidades, consulte la sección Detalles de este aviso

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
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:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2020-11-13 CVE Reserved
  • 2021-05-06 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-11-08 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-378: Creation of Temporary File With Insecure Permissions
  • CWE-427: Uncontrolled Search Path Element
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
 Anyconnect Secure Mobility Client
Search vendor "Cisco" for product "Anyconnect Secure Mobility Client"
 < 4.9.06037
Search vendor "Cisco" for product "Anyconnect Secure Mobility Client" and version " < 4.9.06037"
windows
Affected