CVE-2021-45934
MEDIUM
5.5
CVSS Score
Published: December 31, 2021 at 11:58 PM UTC
Updated: June 17, 2026 at 04:14 AM UTC
1 product affected across 1 vendorWolfmqtt
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.9%
Description
wolfSSL wolfMQTT 1.9 has a heap-based buffer overflow in MqttClient_DecodePacket (called from MqttClient_HandlePacket and MqttClient_WaitType).
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (3)
x_refsource_MISCExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=38146x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/wolfmqtt/OSV-2021-1204.yamlx_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/wolfSSL/wolfMQTT/commit/84d4b53122e0fa0280c7872350b89d5777dabbb2CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-787
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