CVE-2023-30328 is a critical authentication bypass vulnerability (CVSS 9.8) affecting the helper tool of Mailbutler GmbH Shimo VPN Client for macOS v5.0.4. This flaw allows unauthenticated attackers to bypass security measures through PID re-use, potentially leading to full compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, indicating awareness among security researchers. Organizations using the affected Shimo VPN client should prioritize patching to mitigate this severe risk.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
5.0.4CPE matchmatch criteria | cpe:2.3:a:mailbutler:shimo:5.0.4:*:*:*:*:macos:*:* |
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.
No media coverage found for this CVE.
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.