CVE-2019-0880: Technical Deep-Dive (Auto Refreshed)

Generated on 2026-03-30T15:49:46.870Z. This file is automatically regenerated every 30 minutes by the CVE AI enrichment job using web sources (NVD, MITRE, CISA KEV, GitHub).

Executive Technical Summary

A local elevation of privilege vulnerability exists in how splwow64.exe handles certain calls, aka 'Microsoft splwow64 Elevation of Privilege Vulnerability'.

• Context preserved from previous revision: A local elevation of privilege vulnerability exists in how splwow64.exe handles certain calls, aka 'Microsoft splwow64 Elevation of Privilege Vulnerability'. Notes: Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.

Technical Details

• CVE: CVE-2019-0880
• KEV date added: 2022-05-23
• KEV due date: 2022-06-13
• NVD published: 2019-07-15
• NVD modified: 2025-10-29
• MITRE modified: 2025-10-21
• CVSS base score: 7.8
• CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
• CVSS exploitability score: 1.8
• CVSS impact score: 5.9
• Attack vector: Local
• Attack complexity: Low
• Privileges required: Low
• User interaction: None
• Scope: Unchanged
• Confidentiality impact: High
• Integrity impact: High
• Availability impact: High

Versions and Products Impacted

• microsoft / windows 10 1507
• microsoft / windows 10 1607
• microsoft / windows 10 1703
• microsoft / windows 10 1709
• microsoft / windows 10 1803
• microsoft / windows 10 1809
• microsoft / windows 10 1903
• microsoft / windows 8.1
• microsoft / windows rt 8.1
• microsoft / windows server 1903
• microsoft / windows server 2012
• microsoft / windows server 2012 (versions: r2)
• microsoft / windows server 2016
• microsoft / windows server 2019
• Microsoft / Windows Server (versions: 2012, 2012 (Core installation), 2012 R2, 2012 R2 (Core installation), 2016, 2016 (Core installation), version 1803 (Core Installation), 2019, 2019 (Core installation))
• Microsoft / Windows (versions: 8.1 for 32-bit systems, 8.1 for x64-based systems, RT 8.1, 10 for 32-bit Systems, 10 for x64-based Systems, 10 Version 1607 for 32-bit Systems, 10 Version 1607 for x64-based Systems, 10 Version 1703 for 32-bit Systems, 10 Version 1703 for x64-based Systems, 10 Version 1709 for 32-bit Systems)
• Microsoft / Windows 10 Version 1903 for 32-bit Systems (versions: unspecified)
• Microsoft / Windows 10 Version 1903 for x64-based Systems (versions: unspecified)
• Microsoft / Windows 10 Version 1903 for ARM64-based Systems (versions: unspecified)
• Microsoft / Windows Server, version 1903 (Server Core installation) (versions: unspecified)

Weakness Classification

• NVD-CWE-noinfo
• Elevation of Privilege
• CWE-noinfo Not enough information

Repositories for Lab Validation (Public Examples)

• Ostorlab/KEV | stars: 608 | updated: 2026-03-23 | https://github.com/Ostorlab/KEV
  Notes: Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
• punishell/WindowsLegacyCVE | stars: 10 | updated: 2024-12-27 | https://github.com/punishell/WindowsLegacyCVE

People and Organizations Mentioned

• microsoft
• Windows
• Ostorlab
• punishell

Practical Defensive Validation (Authorized Only)

1. Use only isolated environments and systems you own or are explicitly authorized to test.
2. Snapshot infrastructure before validation and preserve baseline logs (EDR, SIEM, OS, app).
3. Create low-privilege users on microsoft / windows 10 1507 and validate that patching blocks unauthorized admin-level actions.
4. Compare token/privilege transitions in Windows Event Logs before and after remediation.
5. Tune detections for unusual group membership changes and SYSTEM-level process launches from user sessions.

References

• NVD record: https://nvd.nist.gov/vuln/detail/CVE-2019-0880
• MITRE CVE record: https://www.cve.org/CVERecord?id=CVE-2019-0880
• CISA KEV Catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
• CISA KEV JSON feed: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json
• KEV notes: https://nvd.nist.gov/vuln/detail/CVE-2019-0880
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0880
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0880
• Repository example: https://github.com/Ostorlab/KEV
• Repository example: https://github.com/punishell/WindowsLegacyCVE

This content is for defensive security training and authorized validation only.