CVE-2018-4015
CVE-2018-4015 is a high-severity vulnerability in Webroot Brightcloud with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-295.
Key facts
- Severity: High (CVSS 3.x base score 8.1)
- CVSS v2: 6.8
- EPSS exploit prediction: 1% (50th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-295
- Affected product: Webroot Brightcloud
- Published:
- Last modified:
Description
An exploitable vulnerability exists in the HTTP client functionality of the Webroot BrightCloud SDK. The configuration of the HTTP client does not enforce a secure connection by default, resulting in a failure to validate TLS certificates. An attacker could impersonate a remote BrightCloud server to exploit this vulnerability.
Frequently asked questions
- What is CVE-2018-4015?
- An exploitable vulnerability exists in the HTTP client functionality of the Webroot BrightCloud SDK. The configuration of the HTTP client does not enforce a secure connection by default, resulting in a failure to validate TLS certificates. An attacker could impersonate a remote BrightCloud server to exploit this vulnerability.
- How severe is CVE-2018-4015?
- CVE-2018-4015 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-4015 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-4015?
- CVE-2018-4015 affects Webroot Brightcloud. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-4015?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2018-4015 published?
- CVE-2018-4015 was published on 2018-12-18 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:webroot:brightcloud:-:*:*:*:*:*:*:*
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