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Fencer Vulns
high 7.8

CVE-2018-8393 in the critical feed json

A buffer overflow vulnerability exists in the Microsoft JET Database Engine that could allow remote code execution on an affected system, a…

published 2018-09-13 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-20031

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
22.5%
EPSS 22.5% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

A buffer overflow vulnerability exists in the Microsoft JET Database Engine that could allow remote code execution on an affected system, aka "Microsoft JET Database Engine Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8392.

Patch / fix

Exploit prediction

22.48% 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 7.8 CVSS:3.0/AV:L/AC:L/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

Affected products

  • Microsoft Windows 7
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows RT 8.1
  • Microsoft Windows Server 2008
  • Microsoft Windows Server 2012
  • Microsoft Windows 8.1
  • Microsoft Windows Server 2016
  • Microsoft Windows Server 2008 R2
  • Microsoft Windows 10
  • Microsoft Windows 10 Servers

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.