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Fencer Vulns
high 7.5

CVE-2018-0858 in the critical feed json

ChakraCore RCE Vulnerability

published 2018-02-15 8 y ago modified 2026-06-17 4 mo ago also GHSA-7gjv-9m33-chg8 , EUVD-2022-3002

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
14.8%
EPSS 14.8% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

ChakraCore allows remote code execution, due to how the ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2018-0834, CVE-2018-0835, CVE-2018-0836, CVE-2018-0837, CVE-2018-0838, CVE-2018-0840, CVE-2018-0856, CVE-2018-0857, CVE-2018-0859, CVE-2018-0860, CVE-2018-0861, and CVE-2018-0866.

Patch / fix

  • nuget Microsoft.ChakraCore 1.8.1

Exploit prediction

14.83% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C
GitHub 3.0 7.5 CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
nuget Microsoft.ChakraCore
<1.8.1
1.8.1

Affected products

  • Microsoft Corporation ChakraCore

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.