Vulnerability in Microsoft Windows
CVE-2018-3989
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (45.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Microsoft Windows
- Wibu Wibukey — versions 6.40
Weakness classification (CWE)
References
- www.securityfocus.com/bid/107005 (VDB Entry, Third Party Advisory, vdb-entry)
- talosintelligence.com/vulnerability_reports/TALOS-2018-0657 (Exploit, Third Party Advisory)
- cert-portal.siemens.com/productcert/pdf/ssa-844562.pdf (Third Party Advisory)
- cert-portal.siemens.com/productcert/pdf/ssa-760124.pdf (Third Party Advisory)
- cert-portal.siemens.com/productcert/pdf/ssa-902727.pdf
Frequently asked questions
- What is CVE-2018-3989?
- CVE-2018-3989 is a medium-severity vulnerability in Microsoft Windows, classified under Use of Uninitialized Resource. CVSS score: 4.3/10. Published 2019-02-05.
- How severe is CVE-2018-3989?
- Medium severity. CVSS v3 base score is 4.3 out of 10.