// For flags

CVE-2021-43666

Gentoo Linux Security Advisory 202301-08

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

A Denial of Service vulnerability exists in mbed TLS 3.0.0 and earlier in the mbedtls_pkcs12_derivation function when an input password's length is 0.

Se presenta una vulnerabilidad de denegación de servicio en mbed TLS 3.0.0 y anteriores, en la función mbedtls_pkcs12_derivation cuando la longitud de una contraseña de entrada es 0

Multiple vulnerabilities have been discovered in Mbed TLS, the worst of which could result in arbitrary code execution. Versions less than 2.28.1 are affected.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
Poc
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2021-11-15 CVE Reserved
  • 2022-03-24 CVE Published
  • 2025-11-26 EPSS Updated
  • 2025-12-02 CVE Updated
  • 2025-12-02 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-130: Improper Handling of Length Parameter Inconsistency
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Arm
Search vendor "Arm"
 Mbed Tls
Search vendor "Arm" for product "Mbed Tls"
 <= 3.0.0
Search vendor "Arm" for product "Mbed Tls" and version " <= 3.0.0"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected