In the VPN client in Mailbutler Shimo before 4.1.5.1 on macOS, the…
Priority MEDIUM 45Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
In the VPN client in Mailbutler Shimo before 4.1.5.1 on macOS, the com.feingeist.shimo.helper tool LaunchDaemon implements an unprotected XPC service that can be abused to execute scripts as root.
Why it matters now
EPSS 0.01483 74th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mailbutler:shimo:*:*:*:*:*:macos:*:* | before 4.1.5.1 | Vulnerable | Mailbutler |
- cpe:2.3:a:mailbutler:shimo:*:*:*:*:*:macos:*:* Versions before 4.1.5.1 Vulnerable ·Mailbutler
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-6823
- 2026-10-03 Alias added: GHSA-4gr9-9jg7-33hm
References
More Mailbutler Shimo vulnerabilities
- TI-2023-14228 An issue in the helper tool of Mailbutler GmbH Shimo VPN Client for macOS v5.0.4 allows… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2018-6823 · CVE Program
- CVE-2018-6823 · NVD
- FIRST EPSS
- GHSA-4gr9-9jg7-33hm · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences