CVE-2021-21968 is a high-severity file write vulnerability affecting Sealevel Systems SeaConnect 370W v1.3.34 firmware. An attacker can exploit this flaw via a specially crafted MQTT payload during an OTA update, potentially leading to arbitrary file overwrite. This vulnerability has a CVSS score of 8.3 (High), indicating a critical risk due to its network-based attack vector, high impact on confidentiality, integrity, and availability, though it requires user interaction and a man-in-the-middle attack. Currently, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.3.34CPE matchmatch criteria | cpe:2.3:o:sealevel:seaconnect_370w_firmware:1.3.34:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.4 Bluesky, 0.2 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.6 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.