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CVE-2017-11767

28
FAUCET Score

CVE-2017-11767 is a critical memory corruption vulnerability affecting Microsoft ChakraCore, allowing an attacker to execute arbitrary code with the same privileges as the current user. This flaw stems from improper object handling within the scripting engine. With a CVSS score of 9.8, it is easily exploitable over a network with low attack complexity, leading to complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

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

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
9.51%
Probability of exploitation in next 30 days
EPSS Percentile
94.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0951 is in the 90th percentile among its peer group of 36,897 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

microsoftpatch availablevia msrc
Product: ChakraCore
View patch
nugetpatch availablevia ghsa
Product: Microsoft.ChakraCoreFixed in: 1.6.2
microsoftvendor investigatingvia nvd_reference
View patch

Vendor Advisories (2)

nugetGHSA-c79v-2rjq-965mcritical

ChakraCore vulnerable to privilege escalation

May 13, 2022
microsoft2017-Sep/CVE-2017-11767Critical

Scripting Engine Memory Corruption Vulnerability

Sep 12, 2017

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2017-11767
Issue TrackingVendor Advisory
securityfocus.com / bid/100838
Third Party AdvisoryVDB Entry
securitytracker.com / id/1039369
Third Party AdvisoryVDB Entry