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.
EPSS: 0.006 (43.8th percentile) — read the EPSS interpretation.
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.
Affected products
- Microsoft Windows
- Wibu Wibukey — versions 6.40
- N/a — versions n/a
Weakness classification (CWE)
References
- talos-cna@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)
- talos-cna@cisco.com (x_refsource_CONFIRM, Third Party Advisory)
- talos-cna@cisco.com (x_refsource_CONFIRM, Third Party Advisory)
- talos-cna@cisco.com (x_refsource_CONFIRM)
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.