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Fencer Vulns
medium 5.5

CVE-2019-0948 json

Windows Event Viewer Information Disclosure Vulnerability

published 2019-06-12 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-1683

cvss
5.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
12.7%
EPSS 12.7% chance of exploitation in 30 days, percentile 96%
public exploits
1
Exploit-DB

Summary

An information disclosure vulnerability exists in the Windows Event Viewer (eventvwr.msc) when it improperly parses XML input containing a reference to an external entity. An attacker who successfully exploited this vulnerability could read arbitrary files via an XML external entity (XXE) declaration. To exploit the vulnerability, an attacker could create a file containing specially crafted XML content and convince an authenticated user to import the file. The update addresses the vulnerability by modifying the way that the Event Viewer parses XML input.

Patch / fix

Timeline

  1. First public exploit (EDB-40863)
  2. Published

Exploit prediction

12.67% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-40863 Microsoft Event Viewer 1.0 - XML External Entity Injection local, 2016-12-05

CVSS scores

assigned by version score vector
CNA 3.1 4.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
CNA 3.1 4.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
CNA 3.0 5.5 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

  • Microsoft Windows 10 Version 1803
  • Microsoft Windows 10 Version 1709
  • Microsoft Windows 10 Version 1809
  • Microsoft Windows 10 Version 1903 for 32-bit Systems
  • Microsoft Windows 10 Version 1903 for ARM64-based Systems
  • Microsoft Windows 10 Version 1709 for 32-bit Systems
  • Microsoft Windows 10 Version 1903 for x64-based Systems
  • Microsoft Windows Server, version 1803 (Server Core Installation)
  • Microsoft Windows Server 2019
  • Microsoft Windows Server, version 1903 (Server Core installation)
  • Microsoft Windows Server 2019 (Server Core installation)
  • Microsoft Windows 8.1
  • Microsoft Windows Server 2008 Service Pack 2 (Server Core installation)
  • Microsoft Windows 7
  • Microsoft Windows 7 Service Pack 1
  • Microsoft Windows Server 2008 Service Pack 2
  • Microsoft Windows Server 2008 R2 Systems Service Pack 1
  • Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)
  • Microsoft Windows Server 2008 Service Pack 2
  • Microsoft Windows Server 2008 R2 Service Pack 1
  • Microsoft Windows Server 2012
  • Microsoft Windows Server 2012 (Server Core installation)
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2012 R2 (Server Core installation)
  • Microsoft Windows 10 Version 1607
  • Microsoft Windows 10 Version 1703
  • Microsoft Windows 10 Version 1507
  • Microsoft Windows Server 2016 (Server Core installation)
  • Microsoft Windows Server 2016

Classification

Weakness
  • CWE-611 Improper Restriction of XML External Entity Reference

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.