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CVE-2018-0778

28
FAUCET Score

CVE-2018-0778 is a critical memory corruption vulnerability in the Microsoft Edge scripting engine, affecting Windows 10 version 1709 and ChakraCore. This flaw allows an unauthenticated attacker to execute arbitrary code in the context of the current user, typically through a malicious website. With a CVSS score of 7.5 (HIGH), exploitation requires user interaction (e.g., visiting a crafted page) and has high impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, its EPSS score and media coverage indicate significant potential risk, though no public exploit code or active exploitation has been observed.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.7.6CPE 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
8.64%
Probability of exploitation in next 30 days
EPSS Percentile
94.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0864 is in the 67th 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 (6)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: 10724-11453
View patch
microsoftpatch availablevia msrc
Product: 10724-11454
View patch
microsoftpatch availablevia msrc
Product: ChakraCore
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

Vendor Advisories (1)

microsoft2018-Jan/CVE-2018-0778Critical

Scripting Engine Memory Corruption Vulnerability

Jan 9, 2018

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2018-0778
PatchVendor Advisory
securityfocus.com / bid/102403
Third Party AdvisoryVDB Entry
securitytracker.com / id/1040100
Third Party AdvisoryVDB Entry