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CVE Record

CVE-2019-6692: A malicious DLL preload vulnerability in Fortinet FortiClient for Windows 6.2.0 and below allows a privileg...

A malicious DLL preload vulnerability in Fortinet FortiClient for Windows 6.2.0 and below allows a privileged attacker to perform arbitrary code execution via forging that DLL.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

FortiClient for Windows 6.2.0 and earlier has a DLL preload weakness. An attacker who already has privileged access could place or forge a DLL so FortiClient runs attacker-controlled code. This is not evidence of remote compromise, but it matters because endpoint security software is trusted and widely deployed.

Executive priority

Treat this as a targeted endpoint-hardening issue, not an internet-wide emergency. Prioritize environments with unmanaged admin access, high-value Windows workstations, or older FortiClient deployments. The absence of KEV evidence lowers urgency, but affected security agents should still be cleaned up promptly.

Technical view

CVE-2019-6692 is described as a malicious DLL preload vulnerability in Fortinet FortiClient for Windows 6.2.0 and below. The source states a privileged attacker can achieve arbitrary code execution by forging the DLL. The bundle provides no CVSS score, CWE, named fixed version, or detailed attack path.

Likely exposure

Exposure is limited to Windows endpoints running Fortinet FortiClient 6.2.0 or below. Systems without FortiClient for Windows, or running later versions if confirmed by Fortinet guidance, are not indicated as affected by the supplied sources.

Exploitation context

The source bundle does not show CISA KEV listing or cited active exploitation. The attacker is described as privileged, so this appears most relevant to post-compromise privilege abuse, persistence, or endpoint-control scenarios rather than initial remote entry.

Researcher notes

Evidence is sparse: the bundle names the affected product and version range, attacker privilege prerequisite, and arbitrary code execution impact. It does not provide exploit details, CVSS, CWE, affected file paths, patch version, or indicators. Avoid assuming broader Fortinet product impact.

Mitigation direction

  • Inventory FortiClient for Windows versions across managed endpoints.
  • Review Fortinet PSIRT FG-IR-19-148 for vendor remediation guidance.
  • Upgrade or remove affected FortiClient versions according to Fortinet guidance.
  • Restrict privileged access on Windows endpoints where FortiClient is installed.
  • Monitor affected endpoints for unexpected DLL changes near FortiClient components.

Validation and detection

  • Confirm whether each Windows endpoint runs FortiClient 6.2.0 or below.
  • Check software inventory, EDR, or endpoint management records for FortiClient versions.
  • Review Fortinet advisory details before declaring a version remediated.
  • Look for suspicious DLL creation or replacement around FortiClient installation paths.
  • Document systems where version evidence is missing or inconclusive.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2019-6692 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/aFortinet FortiClient for WindowsFortiClient for Windows 6.2.0 and belowListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.