CVE-2020-27635 describes an improper randomization of TCP Initial Sequence Numbers (ISNs) in PicoTCP version 1.7.0, impacting Capgemini PicoTCP products. This critical vulnerability (CVSS 9.1) allows unauthenticated attackers to remotely hijack or spoof TCP connections with low attack complexity, potentially leading to high confidentiality and integrity impacts. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.7.0CPE matchmatch criteria | cpe:2.3:a:capgemini:picotcp:1.7.0:*:*:*:*:*:*:* |
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:N
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.