CVE-2020-27630 describes a critical vulnerability in Silicon Labs uC/TCP-IP 3.6.0 where TCP Initial Sequence Numbers (ISNs) are improperly randomized. This flaw, rated 9.8 CRITICAL, allows unauthenticated attackers to remotely hijack TCP connections, leading to high impacts on confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion and media coverage, indicating awareness and potential future exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
3.6.0CPE matchmatch criteria | cpe:2.3:a:silabs:uc\/tcp-ip:3.6.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/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, 0.3 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.