CVE-2021-42072 is a critical vulnerability in Barrier before version 2.4.0, affecting barrier_project and fedoraproject implementations. The flaw stems from insufficient client identity verification, allowing malicious clients to exploit protocol weaknesses. This enables denial-of-service, information leaks, or integrity corruption. With a CVSS score of 8.8 (High), it presents a significant risk due to its network-based attack vector and high potential for confidentiality, integrity, and availability impacts. While no active exploitation, public exploit code, or significant community discussion has been observed, organizations using affected Barrier versions should prioritize patching.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.4.0CPE matchmatch criteria | cpe:2.3:a:barrier_project:barrier:*:*:*:*:*:*:*:* | ||
34CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | ||
35CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 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.