CVE-2021-21962CWE-122

A heap-based buffer overflow vulnerability exists in the OTA Update u-download functionality of Sealevel Systems, Inc

Critical · published February 4, 2022

CVSS v3.0
9.0
EPSS
2%
Percentile
80.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.0
9.0 · CRITICAL
Vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.02010 · 80.7th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2022-02-04T22:29Z
EPSS history
Timeline
  • 04 FEB 22:29Z
    A heap-based buffer overflow vulnerability exists in the OTA Update u-download functionality of Sealevel Systems, Inc
    cvelistv5