CVE-2018-8453

Microsoft Win32k — Microsoft Win32k Privilege Escalation Vulnerability
⚠️ CVSS 3.1  7.8 / 10 — HIGH 🔴 CISA Known Exploited Vulnerability

Overview

Microsoft Windows Win32k contains a vulnerability that allows an attacker to escalate privileges.

https://nvd.nist.gov/vuln/detail/CVE-2018-8453

Key Details

PropertyValue
CVE ID CVE-2018-8453
Vendor / Product Microsoft — Win32k
NVD Published2018-10-10
NVD Last Modified2025-10-28
CVSS 3.1 Score7.8
CVSS 3.1 VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SeverityHIGH
CISA KEV Added2022-01-21
CISA KEV Deadline2022-07-21
Known Ransomware Use ⚠️ Yes

CVSS 3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Required Action

CISA BOD 22-01 Deadline: 2022-07-21. Apply updates per vendor instructions.

Timeline

DateEvent
2022-01-21Added to CISA Known Exploited Vulnerabilities catalog
2022-07-21CISA BOD 22-01 remediation deadline

References

ResourceType
NVD — CVE-2018-8453 Vulnerability Database
CISA KEV Catalog Entry US Government