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CVE-2018-4012

CRITICAL
9
CVSS Score
Published: January 3, 2019 at 11:00 PM UTC
Updated: June 17, 2026 at 01:58 AM UTC
1 product affected across 1 vendorBrightcloud

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Severity
CRITICAL9
Exploit prediction
EPSS 3%

Description

An exploitable buffer overflow vulnerability exists in the HTTP header-parsing function of the Webroot BrightCloud SDK. The function bc_http_read_header incorrectly handles overlong headers, leading to arbitrary code execution. An unauthenticated attacker could impersonate a remote BrightCloud server to trigger this vulnerability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0683

CVSS

9CRITICALtalos
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-119

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