// For flags

CVE-2021-45939

 

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

wolfSSL wolfMQTT 1.9 has a heap-based buffer overflow in MqttClient_DecodePacket (called from MqttClient_WaitType and MqttClient_Subscribe).

wolfSSL wolfMQTT versión 1.9, presenta un desbordamiento de búfer en la región heap de la memoria en MqttClient_DecodePacket (llamado desde MqttClient_WaitType y MqttClient_Subscribe).

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-12-31 CVE Reserved
  • 2021-12-31 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • 2024-09-15 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Wolfssl
Search vendor "Wolfssl"
 Wolfmqtt
Search vendor "Wolfssl" for product "Wolfmqtt"
 1.9
Search vendor "Wolfssl" for product "Wolfmqtt" and version "1.9"
-
Affected