High severity8.1NVD Advisory· Published Feb 4, 2022· Updated Jun 17, 2026
CVE-2021-21962
CVE-2021-21962
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Sealevel Systems, Inc./SeaConnect 370Wdescription
- Range: = 1.3.34
Patches
Vulnerability mechanics
References
1- talosintelligence.com/vulnerability_reports/TALOS-2021-1390nvdExploitThird Party Advisory
News mentions
0No linked articles in our index yet.