HOMEVULNERABILITIESCVE-2018-3989
MEDIUM

CVE-2018-3989

CWE-908Published: February 5, 2019· Updated: Jun 17, 2026

4.3
CVSS v3.1

Official Description

An exploitable kernel memory disclosure vulnerability exists in the 0x8200E804 IOCTL handler functionality of WIBU-SYSTEMS WibuKey.sys Version 6.40 (Build 2400).A specially crafted IRP request can cause the driver to return uninitialized memory, resulting in kernel memory disclosure. An attacker can send an IRP request to trigger this vulnerability.

NVD Source

Technical Analysis

CVE-2018-3989 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeChanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

Affected Vendors & Products

Microsoft1 product(s)
windows
wibu1 product(s)
wibukey
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.securityfocus.com/bid/107005
ADVISORYhttps://cert-portal.siemens.com/productcert/pdf/ssa-760124.pdf
ADVISORYhttps://cert-portal.siemens.com/productcert/pdf/ssa-844562.pdf
ADVISORYhttps://talosintelligence.com/vulnerability_reports/TALOS-2018-0657
ADVISORYhttp://www.securityfocus.com/bid/107005
ADVISORYhttps://cert-portal.siemens.com/productcert/pdf/ssa-760124.pdf
ADVISORYhttps://cert-portal.siemens.com/productcert/pdf/ssa-844562.pdf
ADVISORYhttps://talosintelligence.com/vulnerability_reports/TALOS-2018-0657

All References (10)

→
http://www.securityfocus.com/bid/107005Third Party Advisory · VDB Entry
→
https://cert-portal.siemens.com/productcert/pdf/ssa-760124.pdfThird Party Advisory
→
https://cert-portal.siemens.com/productcert/pdf/ssa-844562.pdfThird Party Advisory
→
https://cert-portal.siemens.com/productcert/pdf/ssa-902727.pdf
→
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0657Exploit · Third Party Advisory
→
http://www.securityfocus.com/bid/107005Third Party Advisory · VDB Entry
→
https://cert-portal.siemens.com/productcert/pdf/ssa-760124.pdfThird Party Advisory
→
https://cert-portal.siemens.com/productcert/pdf/ssa-844562.pdfThird Party Advisory
→
https://cert-portal.siemens.com/productcert/pdf/ssa-902727.pdf
→
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0657Exploit · Third Party Advisory

Quick Facts

CVE IDCVE-2018-3989
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-908
CISA KEVNo
Affected2 vendor(s)
PublishedFeb 5, 2019

Related CVEs (CWE-908)

CVE-2025-27796
9.8
CVE-2019-12730
9.8
CVE-2025-1942
9.8
CVE-2024-8654
9.8
CVE-2019-0006
9.8
CVE-2019-14052
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-3989 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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