CVE-2019-1458

Status: AnalyzedHigh (7.8)⚠ Active exploitation💥 Exploit

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'.

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base score: 7.8

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 74%
Percentile among all scored CVEs: 99
Score date: 10/8/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

CISA KEV — actively exploited

Added to catalog: 1/10/2022
Remediation due date: 7/10/2022
Known ransomware use: Known

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Metasploit module (reliable, widely available exploit) · Microsoft Windows Uninitialized Variable Local Privilege Elevation
Published on Exploit-DB · Microsoft Windows - 'WizardOpium' Local Privilege Escalation (3/3/2020)
Proof of concept on GitHub (unverified) · List of proofs of concept on GitHub

⚠️ GitHub proofs of concept are not verified: some are fake or contain malware. Never run them outside an isolated lab.

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1068 Exploitation for Privilege Escalationprivilege escalation95 %
Secondary impactT1548 Abuse Elevation Control Mechanismprivilege escalation80 %

AV:L PR:L sin interacción usuario → escalada de privilegios local (T1068). Win32k es componente crítico de kernel; explotación permite ejecución con SISTEMA y control total del sistema operativo.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Execution Prevention Update Software User Account Management Threat Intelligence Program Restrict File and Directory Permissions Privileged Account Management

Affected technologies (8)

Microsoft — Windows 10 1507 Microsoft — Windows 10 1607 Microsoft — Windows 7 Microsoft — Windows 8.1 Microsoft — Windows RT 8.1 Microsoft — Windows Server 2008 Microsoft — Windows Server 2012 Microsoft — Windows Server 2016

CWEs

NVD-CWE-noinfo

References

Raw JSON (NVD)

Show

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