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CVE-2018-6755· NVD / CVE Program· CNA trellix

True Key (TK) Windows Client - Weak Directory Permission Vulnerability

Weak Directory Permission Vulnerability in Microsoft Windows client in McAfee True Key (TK) 5.1.230.7 and earlier allows local users to execute arbitrary code via specially crafted malware.

HighCVSS 7.8 · v3.0—Proof of concept No fix recorded
Published
Dec 6, 2018
Updated
Jun 16, 2026
EPSS
1.0% · 61th percentile
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Report tools

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Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.0%

CNA vs NVD score

NVD
7.8
CNA · trellix
7.2
0.6 point gap

CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Affected systems

VendorProduct
mcafeetrue key
microsoftwindows

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • mcafee true keyup to 5.1.230.7 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (trellix). Independent of NVD's CPE analysis and usually ahead of it.

  • McAfee True Key

    • 5.1.230.7 and later · up to and including 5.1.230.7affected

Same product

mcafee: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-6757True Key (TK) Windows Client - Privilege Escalation vulnerability
    31Monitor
  • CVE-2018-6756True Key (TK) Windows Client - Authentication Abuse vulnerability
    31Monitor
  • CVE-2018-6700True Key (TK) - DLL Search Order Hijacking vulnerability
    31Monitor
  • CVE-2018-6661TS102801 True Key DLL Side-Loading vulnerability
    31Monitor
  • CVE-2018-6682True Key (TK) - Cross Site Scripting Exposure
    24Monitor
  • CVE-2019-3610True Key Browser Extension 3.1.9219.0 update fixes Sensitive Data Exposure vulnerability
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Exploit-DB entry ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entrylocal2018-12-11

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. First PoC+4 d
  3. TodaySep 30, 2026+2855 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-732 · Incorrect Permission Assignment for Critical Resource

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records