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CVE-2016-3386

59
FAUCET Score

CVE-2016-3386 describes a memory corruption vulnerability in the Chakra JavaScript engine of Microsoft Edge, allowing remote attackers to execute arbitrary code or cause a denial of service. With a CVSS v3 score of 7.5 (High), exploitation requires user interaction via a crafted website, but can lead to high impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, an ExploitDB entry exists for a spread operator stack overflow, and the vulnerability has garnered some community discussion. Its high EPSS and FAUCET scores indicate a significant potential for exploitation despite no confirmed active exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
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
41.32%
Probability of exploitation in next 30 days
EPSS Percentile
98.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-40605 · Oct 20, 2016
This CVE's current EPSS score of 0.4132 is in the 92nd 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

No media coverage found for this CVE.

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 (13)

microsoftpatch availablevia msrc
Product: Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems
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: 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
microsoftpatch availablevia msrc
Product: Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems
View patch
nugetpatch availablevia ghsa
Product: Microsoft.ChakraCoreFixed in: 1.2.1

Vendor Advisories (2)

nugetGHSA-v9jg-m6g5-h3hhhigh

ChakraCore RCE Vulnerability

May 14, 2022
microsoft2016-Oct/CVE-2016-3386Critical

Scripting Engine Memory Corruption Vulnerability

Oct 11, 2016

References

docs.microsoft.com / en-us/security-updates/securitybulletins/2016/ms16-119
securityfocus.com / bid/93426
securitytracker.com / id/1036993