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CVE-2017-11870

68
FAUCET Score

CVE-2017-11870 is a critical memory corruption vulnerability in ChakraCore and Microsoft Edge, affecting Windows 10 versions 1703 and 1709, and Windows Server version 1709. An attacker can exploit this flaw to execute arbitrary code with the same privileges as the current user. The vulnerability has a CVSS score of 7.5 (HIGH), indicating a network-based attack with high impact on confidentiality, integrity, and availability, though it requires user interaction and has high attack complexity. While there is no evidence of active exploitation in the wild, a public exploit (EDB-43182) exists, and the vulnerability has garnered significant community attention and media coverage.

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
59.64%
Probability of exploitation in next 30 days
EPSS Percentile
99.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-43182 · Nov 27, 2017
This CVE's current EPSS score of 0.5964 is in the 95th 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 (11)

microsoftpatch availablevia msrc
Product: 10724-11454
View patch
microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: ChakraCore
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: 10724-10951
View patch
microsoftpatch availablevia msrc
Product: 10724-10952
View patch
microsoftpatch availablevia msrc
Product: 10724-11453
View patch
nugetpatch availablevia ghsa
Product: Microsoft.ChakraCoreFixed in: 1.7.4

Vendor Advisories (2)

nugetGHSA-9f2p-wm46-6m5fhigh

Chakra Core vulnerable to privilege escalation when writing to JavaScript null scope objects

May 17, 2022
microsoft2017-Nov/CVE-2017-11870Critical

Scripting Engine Memory Corruption Vulnerability

Nov 14, 2017

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2017-11870
PatchVendor Advisory
exploit-db.com / exploits/43182
Third Party AdvisoryVDB Entry
securityfocus.com / bid/101731
Third Party AdvisoryVDB Entry
securitytracker.com / id/1039780
Third Party AdvisoryVDB Entry