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CVE-2019-1458

7.8 · HIGHActively Exploited

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'.

Published Dec 10, 2019EPSS 74.44%

Overview

CVE-2019-1458 is a high-severity vulnerability. It was published on December 10, 2019 and has a CVSS 3.1 base score of 7.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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'.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refpacketstormsecurity.com/files/156651/Microsoft-Windows-WizardOpium-Local-Privilege-Escalation.htmlRefpacketstormsecurity.com/files/159569/Microsoft-Windows-Uninitialized-Variable-Local-Privilege-Escalation.htmlRefportal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1458Refpacketstormsecurity.com/files/156651/Microsoft-Windows-WizardOpium-Local-Privilege-Escalation.htmlRefpacketstormsecurity.com/files/159569/Microsoft-Windows-Uninitialized-Variable-Local-Privilege-Escalation.htmlRefportal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1458CISAwww.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1458

How CyberStrike helps

Frequently asked questions

What is CVE-2019-1458?

CVE-2019-1458 is a high-severity vulnerability. It was published on December 10, 2019 and has a CVSS 3.1 base score of 7.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2019-1458?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2019-1458?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2019-1458?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-1458 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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