Vulnerability in Sealevel Seaconnect 370w
CVE-2021-21959
A misconfiguration exists in the MQTTS functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. This misconfiguration significantly simplifies a man-in-the-middle attack, which directly leads to control of device functionality.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (56.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Sealevel Seaconnect 370w
- Sealevel Seaconnect 370w Firmware — versions 1.3.34
- Sealevel — versions Sealevel Systems, Inc. SeaConnect 370W v1.3.34
Weakness classification (CWE)
References
- talosintelligence.com/vulnerability_reports/TALOS-2021-1388 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-21959?
- CVE-2021-21959 is a high-severity vulnerability in Sealevel Seaconnect 370w, classified under Improper Certificate Validation. CVSS score: 8.1/10. Published 2022-02-04.
- How severe is CVE-2021-21959?
- High severity. CVSS v3 base score is 8.1 out of 10.