CVE-2021-21962
- State
- Published
- Severity
- 9.0 Critical
- Published
- Feb 4, 2022
- Updated
- Apr 15, 2025
- Reserved
- Jan 4, 2021
Description
A heap-based buffer overflow vulnerability exists in the OTA Update u-download functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A series of specially-crafted MQTT payloads can lead to remote code execution. An attacker must perform a man-in-the-middle attack in order to trigger this vulnerability.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.0 | 9.0 Critical | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H | talos |
Weaknesses
- CWE-122 Heap-based Buffer Overflow
Affected Products
| Product | Versions |
|---|---|
Sealeveln/a |
|
References
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