wolfSSL wolfMQTT 1.9 has a heap-based buffer overflow in MqttClient_DecodePacket (called from MqttClient_HandlePacket and MqttClient_WaitType).
Published 2022-01-01 01:15:09
Updated 2022-01-11 21:14:55
Source MITRE
View at NVD,   CVE.org
Vulnerability category: OverflowMemory Corruption

Exploit prediction scoring system (EPSS) score for CVE-2021-45934

Probability of exploitation activity in the next 30 days: 0.15%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 50 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-45934

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
4.3
MEDIUM AV:N/AC:M/Au:N/C:N/I:N/A:P
8.6
2.9
NIST
5.5
MEDIUM CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
1.8
3.6
NIST

CWE ids for CVE-2021-45934

  • The product writes data past the end, or before the beginning, of the intended buffer.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-45934

Products affected by CVE-2021-45934

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