CVE-2021-28166
MEDIUM
6.5
CVSS Score
Published: April 7, 2021 at 06:50 PM UTC
Updated: June 17, 2026 at 03:45 AM UTC
1 product affected across 1 vendorMosquitto
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Severity
MEDIUM6.5
Exploit prediction
EPSS 1.0%
Description
In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL pointer dereference would occur.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
x_refsource_CONFIRMIssue TrackingPatchVendor Advisory
Source: [email protected]
https://bugs.eclipse.org/bugs/show_bug.cgi?id=572608CVSS
6.5MEDIUMeclipse
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-476
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