CVE-2019-6139

CRITICAL

Forcepoint User ID (FUID) server versions up to 1.2 have a remote arbitrary file upload vulnerability on TCP port 5001. Successful exploitation of this vulnerability may lead to remote code executi...

Affects 1 product across 1 vendor.

CVSS 3.19.8
EPSS2.4%
Percentile83th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity, no authentication required, no user interaction needed, impact contained to the vulnerable component, full confidentiality impact, full integrity impact, full availability impact.
CWE Weakness Definitions
CWE-434: Unrestricted Upload of File with Dangerous Type

Application allows file uploads without validating type, enabling upload of executable code or web shells.

Related Attack Patterns (CAPEC)
CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs
via CWE-434

Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ AI Analysis — automated analysis, not human-reviewed

This vulnerability was disclosed in 2019. A critical vulnerability affects Forcepoint systems (CVE-2019-6139). No public exploit code is currently available. Isolate affected systems if patching is not feasible.

BSID: BS-2019-GLOBAL-213265-C • Model: rule-based-v1 • Confidence: MEDIUM

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Frequently Asked Questions
What is CVE-2019-6139?
This vulnerability was disclosed in 2019. A critical vulnerability affects Forcepoint systems (CVE-2019-6139). No public exploit code is currently available. Isolate affected systems if patching is not feasible.
What is the CVSS score for CVE-2019-6139?
CVE-2019-6139 has CVSS 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS: 2.4%.
Is CVE-2019-6139 actively exploited?
No confirmed active exploitation of CVE-2019-6139 as of 2026-06-21.
How do I remediate CVE-2019-6139?
Priority: MEDIUM. Advisory: https://help.forcepoint.com/security/CVE/CVE-2019-6139.html PSIRT: [email protected]
What systems are affected by CVE-2019-6139?
CVE-2019-6139 affects Forcepoint User Id.
Vulnerability Details
CVE IDCVE-2019-6139
BSIDBS-2019-GLOBAL-213265-C BreachSpider Global ID
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published2019-02-07
Last Modified2026-06-17
ICS Relevance0%
Weakness (CWE)
Unrestricted Upload of File with Dangerous Type
SourceNVD
Official Description

Forcepoint User ID (FUID) server versions up to 1.2 have a remote arbitrary file upload vulnerability on TCP port 5001. Successful exploitation of this vulnerability may lead to remote code execution. To fix this vulnerability, upgrade to FUID version 1.3 or higher. To prevent the vulnerability on FUID versions 1.2 and below, apply local firewall rules on the FUID server to disable all external access to port TCP/5001. FUID requires this port only for local connections through the loopback interface.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

Vulnerability details: Forcepoint User ID (FUID) server versions up to 1.2 have a remote arbitrary file upload vulnerability on TCP port 5001. Successful exploitation of this vulnerability may lead to remote code execution. To fix this vulnerability, upgrade to FUID version 1.3 or higher. To prevent the vulnerability on FUID versions 1.2 and below, apply local firewall rules on the FUID server to disable all external access to port TCP/5001. FUID requires this port only for local connections through the loopback inter CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Exploitation Likelihood: LOW

Affected Products
VendorProductAffected Versions
Forcepoint User Id < 1.3.0
Remediation
View Vendor Advisory →

Remediation Priority: MEDIUM

Vendor PSIRT: [email protected]
Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 2807 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Modelrule-based-v1
ConfidenceMEDIUM
Enriched At2026-05-24
SHA-512 Audit Hash2ca565c9dc983279895eccbeafe460b68e13193c08b9437b292e26c24fa5070491cbf43f54c75d785bb477c2356e3a1bbf9e61dc89258a071d8186a5c38d673f
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