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CVE-2018-10381

30
FAUCET Score

CVE-2018-10381 is a critical SYSTEM privilege escalation vulnerability affecting TunnelBear 3.2.0.6 for Windows. It allows arbitrary installed applications to exploit the "TunnelBearMaintenance" service by manipulating the OpenVPN command line to load a malicious dynamic library, executing code with SYSTEM privileges. With a CVSS score of 9.8 (CRITICAL), this vulnerability is easily exploitable over the network with low complexity and no user interaction, leading to complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, its high severity warrants attention.

Impacted Technologies

VendorProductVersion(s)CPE
3.2.0.6CPE matchmatch criteria
cpe:2.3:a:mcafee:tunnelbear:3.2.0.6:*:*:*:*:windows:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.70%
Probability of exploitation in next 30 days
EPSS Percentile
88.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0370 is in the 81st percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / VerSprite/research/blob/master/advisories/VS-2018-022.md
Third Party Advisory