Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2018-8638

20
FAUCET Score

CVE-2018-8638 is an information disclosure vulnerability in DirectX that affects Windows 10 and Windows Server 2019. This medium-severity flaw (CVSS 5.5) allows a local attacker with low privileges to gain access to sensitive information due to improper memory handling. While there is no public exploit code available (Metasploit, Nuclei, ExploitDB), and it is not listed on CISA's KEV catalog, it has received some community and media attention, including a mention in BleepingComputer regarding Microsoft's December 2018 Patch Tuesday. There is no indication of active exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
1809CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.82%
Probability of exploitation in next 30 days
EPSS Percentile
76.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0182 is in the 99th percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1809 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1809 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1809 for ARM64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2019
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2019 (Server Core installation)
View patch

Vendor Advisories (1)

microsoft2018-Dec/CVE-2018-8638Important

DirectX Information Disclosure Vulnerability

Dec 11, 2018

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2018-8638
PatchVendor Advisory
securityfocus.com / bid/106089
Third Party AdvisoryVDB Entry