CVE-2018-8414

Name: CVE-2018-8414
Creator: NVD / NIST
Published: 2018-08-15T17:29:10.393+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10Actively ExploitedEPSS 73.97%

Last modified Jun 17, 2026

CVE-2018-8414 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A remote code execution vulnerability exists when the Windows Shell does not properly validate file paths, aka "Windows Shell Remote Code Execution Vulnerability." This affects Windows 10 Servers, Windows 10.. CISA has confirmed active exploitation in the wild. EPSS estimates a 73.97% chance of exploitation in the next 30 days.

Description

A remote code execution vulnerability exists when the Windows Shell does not properly validate file paths, aka "Windows Shell Remote Code Execution Vulnerability." This affects Windows 10 Servers, Windows 10.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

73.97%

99.4th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Apr 15, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Microsoft	Windows 10 1703	All versions
Microsoft	Windows 10 1709	All versions
Microsoft	Windows 10 1803	All versions
Microsoft	Windows Server 1709	All versions
Microsoft	Windows Server 1803	All versions

References

http://www.securityfocus.com/bid/105016Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041458Broken Link, Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8414Patch, Vendor Advisory
http://www.securityfocus.com/bid/105016Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041458Broken Link, Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8414Patch, Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8414US Government Resource

Timeline

Published: Aug 15, 2018
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2018-8414?

How severe is CVE-2018-8414?

CVE-2018-8414 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 73.97% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2018-8414?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-8414?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST