CVE-2018-4009

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2019-04-15 · updated 2026-06-17
Weakness: CWE-494

Description

An exploitable privilege escalation vulnerability exists in the Shimo VPN helper service due to improper validation of code signing. A user with local access can use this vulnerability to raise their privileges to root. An attacker would need local access to the machine to successfully exploit this bug.

Affected products

Shimo VPN: 4.1.5.1

References

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0678
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0678

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