CVE-2019-1458Microsoft Win32k Privilege Escalation Vulnerability

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'.

7.8 HIGHEPSS 74.43%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-08-12 05:17 UTC

OverviewCVSS details

7.8HIGHCVSS 3.1

Score source: NVD
NVD status: Analyzed
Published: Dec 10, 2019
Assigner: microsoft

Affected

Windows (Microsoft)

Versions: 10 for 32-bit Systems · 10 for x64-based Systems

+1 more product →

Exploitation

Public exploit: Yes · 2 references
CISA KEV: Listed · Jan 10, 2022
KEV due date: Jul 10, 2022
Ransomware use: Known
SSVC: Exploitation active · Automatable no · Impact total

EPSS · FIRST, scored Nov 7

74.43%chance of exploitation in 30 days

Higher than 99.49% of CVEs

CVSS 3.1 · NVD

7.8High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 2.0 · NVD

7.2High

AV:L/AC:L/Au:N/C:C/I:C/A:C

Attack vector: Local
Attack complexity: Low
Authentication: None
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
7.8	HIGH	3.1NVD	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2	HIGH	2.0NVD	AV:L/AC:L/Au:N/C:C/I:C/A:C

CISA required action

⚡ Known exploited · remediation due Jul 10, 2022

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Details

CVE ID: CVE-2019-1458
Status: Analyzed
Assigner (CNA): microsoft
Published: Dec 10, 2019
Last modified: 2026-08-12 05:17 UTC

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 11:22 UTC.