// For flags

CVE-2021-26315

 

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

< 1%
*EPSS

Affected Versions

20
*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

When the AMD Platform Security Processor (PSP) boot rom loads, authenticates, and subsequently decrypts an encrypted FW, due to insufficient verification of the integrity of decrypted image, arbitrary code may be executed in the PSP when encrypted firmware images are used.

Cuando AMD Platform Security Processor (PSP) carga la rom de arranque, autentica y posteriormente descifra un FW cifrado, debido a una insuficiente verificación de la integridad de la imagen descifrada, es posible ejecutar código arbitrario en la PSP cuando son usadas imágenes de firmware cifradas

*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
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-01-29 CVE Reserved
  • 2021-11-16 CVE Published
  • 2024-09-17 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-345: Insufficient Verification of Data Authenticity
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions (20)