CVE-2021-21960 is a critical stack-based buffer overflow vulnerability in the LLMNR functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34 and its firmware. This flaw allows an unauthenticated attacker to achieve remote code execution by sending a specially crafted network packet. With a CVSS score of 10.0, it presents a severe risk due to its network-based attack vector, low complexity, and complete compromise of confidentiality, integrity, and availability. While not currently listed in CISA's KEV catalog and lacking public exploit code in Metasploit, Nuclei, or ExploitDB, its high FAUCET Risk Score of 82/100 and media coverage indicate significant concern 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:L/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, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.