# CVE-2019-1215: Microsoft Windows Privilege Escalation Vulnerability

> CVE-2019-1215: Microsoft Windows Privilege Escalation Vulnerability. CVSS 7.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2019-1215
Last updated: 2025-10-21T23:45:31Z

- Published: 2019-09-11 21:24 UTC · Updated: 2025-10-21 23:45 UTC · Assigner: microsoft
- CVSS: 7.8 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS: 19.3%, 97th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2021-11-03, federal due date 2022-05-03, ransomware use: Known

## Description

An elevation of privilege vulnerability exists in the way that ws2ifsl.sys (Winsock) handles objects in memory, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1253, CVE-2019-1278, CVE-2019-1303.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- Microsoft: Windows
- Microsoft: Windows 10 Version 1903 for 32-bit Systems
- Microsoft: Windows 10 Version 1903 for ARM64-based Systems
- Microsoft: Windows 10 Version 1903 for x64-based Systems
- Microsoft: Windows Server
- Microsoft: Windows Server, version 1903 (Server Core installation)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2019-1215)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2019-1215)
- [https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1215](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1215)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2019-1215 · Markdown: https://rewindex.com/cve/CVE-2019-1215.md · JSON: https://rewindex.com/api/v1/cves/CVE-2019-1215 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:50:05.878Z