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CVE-2018-4015

25
FAUCET Score

CVE-2018-4015 is a high-severity vulnerability in the Webroot BrightCloud SDK's HTTP client functionality, stemming from its failure to enforce secure connections and validate TLS certificates by default. This allows an attacker to impersonate a legitimate BrightCloud server, leading to potential compromise of confidentiality, integrity, and availability with a CVSS score of 8.1. While the attack complexity is high, no public exploit code (Metasploit, Nuclei, ExploitDB) is available, and it is not listed on CISA's KEV catalog. Community discussion and media coverage are minimal, suggesting low active exploitation or public awareness.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:webroot:brightcloud:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.73%
Probability of exploitation in next 30 days
EPSS Percentile
50.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0073 is in the 19th percentile among its peer group of 8,914 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

talosintelligence.com / vulnerability_reports/TALOS-2018-0686
Third Party Advisory