CVE-2019-1129
Microsoft Windows 10 1709
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSummary
CVE-2019-1129 is a high-severity Link Following (CWE-59) vulnerability in Microsoft Windows 10 1709. Its CVSS base score is 7.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Path Interception (T1034); ranked in the top 24% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
An elevation of privilege vulnerability exists in the Windows AppX Deployment Service (AppXSVC) due to improper handling of hard links. The flaw is tracked under CWE-59 and carries a CVSS 3.1 base score of 7.8, reflecting local attack vector, low attack complexity, and low privileges required for exploitation. It affects Windows systems that use the AppX deployment mechanism and is distinct from the related CVE-2019-1130.
A local attacker with a low-privileged account can exploit the issue to obtain elevated privileges on the affected system, resulting in full control over confidentiality, integrity, and availability of the host. The attack requires no user interaction and can be performed from a standard user context.
Microsoft published remediation guidance in its security advisory for CVE-2019-1129. The vulnerability appears in CISA's catalog of known exploited vulnerabilities, confirming observed in-the-wild exploitation.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2019-9706
Vulnerability Data
An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1130.
- CWE(s)
- KEV Date Added
- 15 March 2022
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V15.4.2
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Secure SDLC practices directly require code to validate paths and avoid unsafe link following.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Security testing can detect link-following flaws before release.
Secure SDLC practices can mandate link-resolution checks and canonicalization before file access.
Application security requirements can explicitly require safe handling of symbolic links and path traversal.
Secure architecture principles include input validation and safe file-access design patterns.
Secure coding standards directly address canonicalization and symlink attacks during implementation.
Access-control rules can limit which files are reachable, reducing exposure to malicious links.