CVE-2021-21962 is a heap-based buffer overflow in the OTA Update u-download functionality of Sealevel Systems SeaConnect 370W v1.3.34, affecting both the device and its firmware. This vulnerability carries a high CVSS score of 8.1, indicating a critical risk due to the potential for remote code execution via specially crafted MQTT payloads, though it requires a man-in-the-middle attack. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), it has garnered some community discussion and media coverage, suggesting awareness within the cybersecurity community.
| 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:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.