CVE-2021-21968
HIGHSealevel SeaConnect 370W Firmware 1.3.34 - Arbitrary File Write via OTA Update Task MQTT Payload
Title source: llmDescription
A file 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 arbitrary file overwrite. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.
References (1)
Core 1
Core References
Exploit, Technical Description, Third Party Advisory x_refsource_misc
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1395
Scores
CVSS v3
8.3
EPSS
0.0095
EPSS Percentile
56.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-20
Status
published
Products (1)
sealevel/seaconnect_370w_firmware
1.3.34
Published
Feb 04, 2022
Tracked Since
Feb 18, 2026