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TI-2018-02972 Aliases CVE-2018-4004GHSA-35g5-j45f-57f3

Improper input validation in Shimo VPN

Priority LOW 25CWE-20Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

An exploitable privilege escalation vulnerability exists in the Shimo VPN 4.1.5.1 helper service in the disconnectService functionality. A non-root user is able to kill any privileged process on the system. An attacker would need local access to the machine for a successful exploit.

Why it matters now

EPSS 0.00376 31st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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

VendorProductAffected versionsFixed inStatusSource
—Shimo VPNShimo VPN 4.1.5.1—No fix listedCNA
  • Shimo VPN Vendor— Affected Shimo VPN 4.1.5.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:shimovpn:shimo_vpn:4.1.5.1:*:*:*:*:*:*:*4.1.5.1VulnerableShimovpn
  • cpe:2.3:a:shimovpn:shimo_vpn:4.1.5.1:*:*:*:*:*:*:* Versions 4.1.5.1 Vulnerable ·Shimovpn

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-4004
  2. 2026-10-03 Alias added: GHSA-35g5-j45f-57f3

References

Exploit 1

  • TI-2018-02974 Improper input validation in Shimo VPN CVSS 3.1HIGH 7.8
  • TI-2018-02973 Improper input validation in Shimo VPN CVSS 3.1HIGH 7.8
  • TI-2018-02977 An exploitable privilege escalation vulnerability exists in the Shimo VPN helper service… CVSS 3.1HIGH 7.8
  • TI-2018-02976 Improper privilege management in Shimo VPN CVSS 3.1HIGH 7.8
  • TI-2018-02975 Improper input validation in Shimo VPN CVSS 3.1HIGH 7.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences