CVE-2016-0167 Microsoft CVE debrief

Who should care

Windows administrators, endpoint and server security teams, vulnerability management owners, incident responders, and any organization tracking CISA KEV items or ransomware-exposed systems.

Technical summary

The supplied CISA KEV metadata identifies CVE-2016-0167 as a Microsoft Win32k privilege escalation vulnerability with known exploitation and known ransomware campaign use. CISA’s required action is to apply updates per vendor instructions. The corpus does not provide affected versions, exploit mechanics, or CVSS data, so validation should rely on the official CVE record, NVD entry, and Microsoft guidance.

Defensive priority

High — treat as urgent because it is listed in CISA’s Known Exploited Vulnerabilities catalog and flagged for known ransomware campaign use.

Recommended defensive actions

• Apply Microsoft-recommended updates or mitigations referenced for CVE-2016-0167.
• Prioritize remediation on high-value Windows systems and any endpoints that are difficult to monitor or isolate.
• Use the official CVE and NVD records to confirm scope before change windows and to align asset inventory.
• Track this item as a KEV-driven remediation case and treat the supplied due date as historical prioritization context if the vulnerability remains present.
• Review Windows security telemetry for signs of privilege escalation or follow-on activity on systems that could not be patched promptly.

Evidence notes

The supplied source is CISA’s KEV JSON feed, which lists vendorProject Microsoft, product Win32k, vulnerabilityName Microsoft Win32k Privilege Escalation Vulnerability, dateAdded 2021-11-03, dueDate 2022-05-03, knownRansomwareCampaignUse Known, and requiredAction Apply updates per vendor instructions. The feed also references the NVD detail page. Official links supplied in the corpus include the CVE.org record, the NVD detail page, and the CISA KEV catalog.

Official resources