Improper input validation in Sealevel Seaconnect 370w
CVE-2021-21968
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (59.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · 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-2021-1395 (Technical Description, Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-21968?
- CVE-2021-21968 is a high-severity vulnerability in Sealevel Seaconnect 370w, classified under Improper Input Validation. CVSS score: 8.3/10. Published 2022-02-04.
- How severe is CVE-2021-21968?
- High severity. CVSS v3 base score is 8.3 out of 10.