Buffer overflow in Microsoft Windows
CVE-2018-3990
An exploitable pool corruption 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 a buffer overflow, resulting in kernel memory corruption and, potentially, privilege escalation. An attacker can send an IRP request to trigger this vulnerability.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (48.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.4% 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)
- 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
- talosintelligence.com/vulnerability_reports/TALOS-2018-0658 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-3990?
- CVE-2018-3990 is a critical-severity vulnerability in Microsoft Windows, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.3/10. Published 2019-02-05.
- How severe is CVE-2018-3990?
- Critical severity. CVSS v3 base score is 9.3 out of 10.