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CVE-2018-8283

30
FAUCET Score

CVE-2018-8283 is a remote code execution vulnerability affecting Microsoft ChakraCore, stemming from how its scripting engine handles objects in memory. This memory corruption flaw carries a high CVSS score of 7.5, indicating a network-based attack with high impact on confidentiality, integrity, and availability, though it requires user interaction and has high attack complexity. There is no evidence of active exploitation, nor are there publicly available exploit modules in common frameworks like Metasploit or Nuclei. Despite its age, it garnered some community discussion and media coverage at the time of its disclosure.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.10.1CPE 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
13.96%
Probability of exploitation in next 30 days
EPSS Percentile
96.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1396 is in the 79th 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: 1.10.1

Vendor Advisories (2)

nugetGHSA-ch84-pxpj-7hhmhigh

ChakraCore RCE Vulnerability

May 13, 2022
microsoft2018-Jul/CVE-2018-8283Critical

Scripting Engine Memory Corruption Vulnerability

Jul 10, 2018

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2018-8283
PatchVendor Advisory
securityfocus.com / bid/104633
Third Party AdvisoryVDB Entry