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CVE-2017-11801

25
FAUCET Score

CVE-2017-11801 is a scripting engine information disclosure vulnerability in Microsoft ChakraCore that allows an attacker to execute arbitrary code in the context of the current user. It carries a high CVSS score of 7.5, indicating a significant risk due to its network-based attack vector, high impact on confidentiality, integrity, and availability, despite requiring user interaction and having high attack complexity. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage, suggesting awareness within the security community. This CVE was addressed as part of Microsoft's October Patch Tuesday.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.7.2CPE matchmatch criteria
cpe:2.3:a:microsoft:chakracore:*:*:*:*:*:*:*:*

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
5.80%
Probability of exploitation in next 30 days
EPSS Percentile
92.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0580 is in the 59th 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 (3)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: ChakraCore
View patch
nugetpatch availablevia ghsa
Product: Microsoft.ChakraCoreFixed in: 1.7.3

Vendor Advisories (2)

nugetGHSA-f8f9-q5hg-9c7qhigh

ChakraCore RCE Vulnerability

May 17, 2022
microsoft2017-Oct/CVE-2017-11801Critical

Scripting Engine Memory Corruption Vulnerability

Oct 10, 2017

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2017-11801
PatchVendor Advisory
securityfocus.com / bid/101146
Third Party AdvisoryVDB Entry