{"cve":"CVE-2023-30328","nvd":{"published":"2023-05-04T21:15:11.540","modified":"2026-06-17T05:54:29.980","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-287"],"references":["https://github.com/rand0mIdas/randomideas/blob/main/ShimoVPN.md","https://raw.githubusercontent.com/rand0mIdas/randomideas/main/ShimoVPN.md?token=GHSAT0AAAAAACA3WX4SPH2YYOCWGV6LLVSGZBIEKEQ","https://github.com/rand0mIdas/randomideas/blob/main/ShimoVPN.md","https://raw.githubusercontent.com/rand0mIdas/randomideas/main/ShimoVPN.md?token=GHSAT0AAAAAACA3WX4SPH2YYOCWGV6LLVSGZBIEKEQ"],"products":["mailbutler:shimo"],"source":"nvd","synced_at":"2026-10-19T21:38:18.424950729+00:00"},"epss":{"cve":"CVE-2023-30328","score":0.01087,"percentile":0.65315,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}