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CVE-2018-0859

31
FAUCET Score

CVE-2018-0859 is a Scripting Engine Memory Corruption Vulnerability affecting Microsoft Edge and ChakraCore on various Windows 10 and Server 2016 versions. This flaw allows for remote code execution due to improper handling of objects in memory. It carries a CVSSv3 score of 7.5 (HIGH), indicating a high impact on confidentiality, integrity, and availability, with a network attack vector and high attack complexity requiring user interaction. While the vulnerability has a high FAUCET Risk Score and notable community discussion, there is no evidence of active exploitation, nor are public exploits available in Metasploit, Nuclei, or ExploitDB.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:chakracore:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
17.73%
Probability of exploitation in next 30 days
EPSS Percentile
96.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1773 is in the 88th percentile among its peer group of 1,572 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.4 Bluesky, 0.2 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.6 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (31)

microsoftpatch availablevia msrc
Product: Microsoft Edge (EdgeHTML-based) on Windows Server 2016
View patch
microsoftpatch availablevia msrc
Product: Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: 10724-11644
View patch
microsoftpatch availablevia msrc
Product: 10724-11645
View patch
microsoftpatch availablevia msrc
Product: 10724-11646
View patch
microsoftpatch availablevia msrc
Product: 10724-10951
View patch
microsoftpatch availablevia msrc
Product: 10724-10952
View patch
microsoftpatch availablevia msrc
Product: 10724-11453
View patch
microsoftpatch availablevia msrc
Product: 10724-11454
View patch
microsoftpatch availablevia msrc
Product: 10724-10729
View patch
microsoftpatch availablevia msrc
Product: 10724-10735
View patch
microsoftpatch availablevia msrc
Product: 10724-10789
View patch
microsoftpatch availablevia msrc
Product: 10724-10788
View patch
microsoftpatch availablevia msrc
Product: 10724-10852
View patch
microsoftpatch availablevia msrc
Product: 10724-10853
View patch
microsoftpatch availablevia msrc
Product: 10724-10816
View patch
microsoftpatch availablevia msrc
Product: ChakraCore
View patch
microsoftpatch availablevia msrc
Product: Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for ARM64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for x64-based Systems
View patch
nugetpatch availablevia ghsa
Product: Microsoft.ChakraCoreFixed in: 1.8.1
microsoftvendor investigatingvia nvd_reference
View patch

Vendor Advisories (2)

nugetGHSA-9pvj-pgg9-pvqqhigh

ChakraCore RCE Vulnerability

May 13, 2022
microsoft2018-FEB/CVE-2018-0859Critical

Scripting Engine Memory Corruption Vulnerability

Feb 13, 2018

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2018-0859
Vendor Advisory
securityfocus.com / bid/102882
ExploitThird Party AdvisoryVDB Entry
securitytracker.com / id/1040372
Third Party AdvisoryVDB Entry