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01 Record

CVE-2018-4009

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

HighPUBLISHEDCNA: talos
CNA base score8.8 CVSS v3.xCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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02 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

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.44% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 38.2% of scored records. A rank, not a probability.
NVD base score
7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2019-04-15 19:46Z7 YR AGO
Last updated
2024-08-05 04:57Z2 YR AGO
Reserved
2018-01-02
Assigning CNA
talos
Record state
PUBLISHED
Severity
High (CVSS 8.8)
CNA CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weaknesses
  • CWE-494Download of Code Without Integrity CheckBase
Data version
5.1
Document digest
e1d6522f7cb7f0e75ac4815e1fbf57f9cd11bef862fefae3c5ac9bc655dc5469

05 Affected products

VendorProductVersionsPlatforms
n/aShimo VPNShimo VPN 4.1.5.1—

06 References