// For flags

CVE-2021-40327

 

Severity Score

5.9
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Trusted Firmware-M (TF-M) 1.4.0, when Profile Small is used, has incorrect access control. NSPE can access a secure key (held by the Crypto service) based solely on knowledge of its key ID. For example, there is no authorization check associated with the relationship between a caller and a key owner.

Trusted Firmware-M (TF-M) versión 1.4.0, cuando es usado el perfil Small, presenta un control de acceso incorrecto. NSPE puede acceder a una clave segura (mantenida por el servicio Crypto) basándose únicamente en el conocimiento de su ID de clave. Por ejemplo, no es presentado ninguna comprobación de autorización asociada a la relación entre un llamante y el propietario de la clave

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
High
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-08-30 CVE Reserved
  • 2022-01-13 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-09-28 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-862: Missing Authorization
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Trustedfirmware
Search vendor "Trustedfirmware"
 Trusted Firmware-m
Search vendor "Trustedfirmware" for product "Trusted Firmware-m"
 1.4.0
Search vendor "Trustedfirmware" for product "Trusted Firmware-m" and version "1.4.0"
-
Affected