Medium severity5.9NVD Advisory· Published Apr 14, 2022· Updated Jun 17, 2026
CVE-2021-21967
CVE-2021-21967
Description
An out-of-bounds write vulnerability exists in the OTA update task functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted MQTT payload can lead to denial of service. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.
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Affected products
2- Range: = 1.3.34
- Sealevel Systems, Inc./SeaConnect 370Wv5Range: v1.3.34
Patches
Vulnerability mechanics
References
1- talosintelligence.com/vulnerability_reports/TALOS-2021-1394nvdExploitThird Party Advisory
News mentions
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