CVE-2018-4012 is a high-severity buffer overflow vulnerability in the Webroot BrightCloud SDK's HTTP header-parsing function, specifically bc_http_read_header, affecting Webroot BrightCloud products. This flaw allows an unauthenticated attacker to impersonate a BrightCloud server and trigger arbitrary code execution by sending overlong HTTP headers. With a CVSS score of 8.1 (HIGH), the vulnerability is remotely exploitable with high impact on confidentiality, integrity, and availability, though it requires high attack complexity. There is no public exploit code available (Metasploit, Nuclei, ExploitDB), and it is not listed in CISA's KEV catalog, indicating no active exploitation. Community discussion and media coverage are minimal, suggesting limited public attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:a:webroot:brightcloud:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
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.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.