// For flags

CVE-2022-20826

 

Severity Score

6.8
*CVSS v3.1

Exploit Likelihood

< 1%
*EPSS

Affected Versions

45
*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability in the secure boot implementation of Cisco Secure Firewalls 3100 Series that are running Cisco Adaptive Security Appliance (ASA) Software or Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated attacker with physical access to the device to bypass the secure boot functionality. This vulnerability is due to a logic error in the boot process. An attacker could exploit this vulnerability by injecting malicious code into a specific memory location during the boot process of an affected device. A successful exploit could allow the attacker to execute persistent code at boot time and break the chain of trust.

Una vulnerabilidad en la implementación de boot seguro de Cisco Secure Firewalls serie 3100 que ejecutan el Software Cisco Adaptive Security Appliance (ASA) o el Software Cisco Firepower Threat Defense (FTD) podría permitir que un atacante no autenticado con acceso físico al dispositivo omita la funcionalidad de boot seguro. Esta vulnerabilidad se debe a un error lógico en el proceso de boot. Un atacante podría aprovechar esta vulnerabilidad inyectando código malicioso en una ubicación de memoria específica durante el proceso de boot de un dispositivo afectado. Un exploit exitoso podría permitir al atacante ejecutar código persistente en el momento del boot y romper la cadena de confianza.

*Credits: N/A
CVSS Scores
Attack Vector
Physical
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Physical
Attack Complexity
High
Privileges Required
None
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:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-11-02 CVE Reserved
  • 2022-11-10 CVE Published
  • 2024-08-03 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-501: Trust Boundary Violation
CAPEC
Affected Vendors, Products, and Versions (45)