CVE-2021-21967

State
Published
Severity
6.5 Medium
Published
Apr 14, 2022
Updated
Apr 15, 2025
Reserved
Jan 4, 2021

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.06.5 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:Htalos

Weaknesses

  • CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Affected Products

ProductVersions
SeaConnect 370WSealevel Systems, Inc.
  • v1.3.34Affected

References

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