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Fencer Vulns
high 7.5

CVE-2016-3390 in the critical feed json

ChakraCore RCE Vulnerability

published 2016-10-14 10 y ago modified 2026-06-17 4 mo ago also GHSA-f7p4-fmmh-4p8x , EUVD-2022-3718

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
16.8%
EPSS 16.8% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

The scripting engines in Microsoft Internet Explorer 11 and Microsoft Edge allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, as demonstrated by the Chakra JavaScript engine, aka "Scripting Engine Memory Corruption Vulnerability."

Patch / fix

  • nuget Microsoft.ChakraCore 1.2.1

Exploit prediction

16.84% chance of exploitation in the next 30 days, higher than 97% 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 7.6 AV:N/AC:H/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
<1.2.1
1.2.1

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.