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CVE-2021-21968 Details
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.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 15, 2025Exploitation: PocAutomatable: NoTechnical Impact: Total
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://talosintelligence.com/vulnerability_reports/TALOS-2021-1395 | CVE | ExploitTechnical DescriptionThird Party Advisory |
| https://talosintelligence.com/vulnerability_reports/TALOS-2021-1395 | [email protected] | ExploitTechnical DescriptionThird Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-Other | Weakness Not in a Standard CWE Category | [email protected] |
| CWE-20 | Improper Input Validation | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| sealevel seaconnect 370w firmware | 1.3.34 |
CPE
Remediation
| |
| sealevel seaconnect 370w | All versions |
CPE
Remediation
| |
Change History
9 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| Jun 30, 2023 | Reanalysis | [email protected] |
| Oct 1, 2022 | Modified Analysis | [email protected] |
| Apr 28, 2022 | CVE Modified | [email protected] |
| Apr 19, 2022 | CVE Modified | [email protected] |
| Feb 9, 2022 | Initial Analysis | [email protected] |