CVE-2021-21970 is an out-of-bounds write vulnerability affecting Sealevel Systems, Inc. SeaConnect 370W v1.3.34. Specifically, the HandleSeaCloudMessage functionality can be exploited due to improper handling of MQTT messages, leading to a buffer overflow when populating the p_name global variable. This vulnerability carries a high CVSS score of 8.1, indicating a severe impact with high confidentiality, integrity, and availability compromise, and can be exploited remotely with high attack complexity and no user interaction. While the FAUCET Risk Score is 63/100, there is currently no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.
| 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:N/I:L/A:N
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.
No media coverage found for this CVE.
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.