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Fencer Vulns
high 7.5

CVE-2019-1057 json

MS XML Remote Code Execution Vulnerability

published 2019-08-14 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-9640

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
3.1%
EPSS 3.1% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

A remote code execution vulnerability exists when the Microsoft XML Core Services MSXML parser processes user input. An attacker who successfully exploited the vulnerability could run malicious code remotely to take control of the user’s system. To exploit the vulnerability, an attacker could host a specially crafted website designed to invoke MSXML through a web browser. However, an attacker would have no way to force a user to visit such a website. Instead, an attacker would typically have to convince a user to either click a link in an email message or instant message that would then take the user to the website. When Internet Explorer parses the XML content, an attacker could run malicious code remotely to take control of the user’s system. The update addresses the vulnerability by correcting how the MSXML parser processes user input.

Patch / fix

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

3.07% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
CNA 3.1 7.5 CVSS:3.1/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

Affected products

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

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code
  • 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.