Vulnerability · Published Feb 4, 2022 · Assigned by talos

CVE-2021-21968

High 8.1

In plain English

A high-severity improper input validation in Sealevel. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 61% of all known vulnerabilities).

Severity (CVSS 3.0)8.1High

Exploit odds (30 days)1.0%top 38.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
n/a	Sealevel	Sealevel Systems, Inc. SeaConnect 370W v1.3.34

Weakness: CWE-20 · Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1395 x_refsource_MISC