CVE intelligence and bounded remediation
CVE-2019-1057 — A remote code execution vulnerability exists when the Microsoft XML Core Services MSXML parser processes user input
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.
- Severity
- High
- CVSS
- 9.3 (2.0)
- Published
- 2019-08-14
- CISA KEV
- Not currently listed
- Ecosystem
- windows/system
- Weaknesses
- CWE-611, CWE-94
Affected products
- microsoft / windows_10
- microsoft / windows_10 / 1607
- microsoft / windows_10 / 1703
- microsoft / windows_10 / 1709
- microsoft / windows_10 / 1803
- microsoft / windows_10 / 1809
Matched remediation archetype
Command, code, expression, and template injection
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Trace untrusted values to process execution, interpreters, evaluators, template engines, dynamic imports, and administrative scripting features.
- Determine whether the affected path is reachable across each trust boundary and which service account or host privilege it inherits.
- Review configuration for optional execution features, unsafe compatibility modes, and shell invocation.
Remediate safely
- Replace string-built commands or evaluated code with fixed operations and structured argument APIs that do not invoke a shell.
- Use strict allowlists for operation identifiers and reject unexpected input before it reaches any interpreter.
- Update the affected component and add inert regression tests covering metacharacters, encoding variants, and alternate request paths.
Authoritative sources
Complete CVE record and remediation plan
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