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Fencer Intel
high 7.5

CVE-2018-8631 in the critical feed json

A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka "Internet Explorer Memory Co…

published 7y ago modified 4mo ago also EUVD-2018-20242

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
68.5%
EPSS 68.5% chance of exploitation in 30 days, percentile 99.3%
public exploits
1
Exploit-DB

Summary

A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka "Internet Explorer Memory Corruption Vulnerability." This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10.

Patch / fix

Is CVE-2018-8631 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Timeline

  1. Published
  2. First public exploit (EDB-46001)

Exploit prediction

68.49% chance of exploitation in the next 30 days, higher than 99.3% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-46001 Microsoft Windows - 'jscript!JsArrayFunctionHeapSort' Out-of-Bounds Write dos, 2018-12-18

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

Affected products

  • Microsoft Internet Explorer 9
  • Microsoft Internet Explorer 11
  • Microsoft Internet Explorer 10

Classification

Weakness

References

Sources

Fencer Intel 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.