What is CVE-2023-30328?

CVE-2023-30328 is a critical-severity vulnerability in Mailbutler Shimo, classified under Improper Authentication. CVSS score: 9.8/10. Published 2023-05-04.

How severe is CVE-2023-30328?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Mailbutler Shimo

CVE-2023-30328

An issue in the helper tool of Mailbutler GmbH Shimo VPN Client for macOS v5.0.4 allows attackers to bypass authentication via PID re-use.

Vulnerability class: Broken Authentication

EPSS: 0.011 (61.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Mailbutler Shimo — versions 5.0.4
N/a — versions n/a

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

cve@mitre.org (Exploit, Third Party Advisory)
cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-30328?: CVE-2023-30328 is a critical-severity vulnerability in Mailbutler Shimo, classified under Improper Authentication. CVSS score: 9.8/10. Published 2023-05-04.
How severe is CVE-2023-30328?: Critical severity. CVSS v3 base score is 9.8 out of 10.