CVE-2018-8453
ENISA EUVD: EUVD-2018-20088 ↗
Exploited in the Wild
✓ Confirmed 0-Day
★ Google Project Zero
Triaged: March 5, 2026
3 articles
EPSS Score
Source: FIRST.org · 2026-05-24
81.33%
probability
This CVE has a 81.33% probability
of being exploited in the next 30 days.
0%
Top 99.2th percentile of all CVEs
100%
CVSS v3.1
Source: NVD7.8
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Description
Project ZeroUse-after-free in win32kfull!xxxDestroyWindow
Affected Products
Google Project Zero
Discovered
Aug. 17, 2018
Patched
Oct. 9, 2018
Reported by
Kaspersky Lab
Root Cause Analysis
???
Exploits & PoC
Patched Windows Zero-Day Provided Full Control Over Vulnerable Systems
BleepingComputer
Apr 15, 2019
Inside the customer environment: Where threat actors, vulnerabilities, and exposed assets intersect
Tenable-Research
May 27, 2026
Microsoft Patches Windows Zero-Day Exploited in Cyber Attacks
BleepingComputer
Nov 14, 2018
Signal Intelligence
Confidence
95%
EPSS
81.33%
CVSS v3.1
7.8
Mentions
3
Last Seen
May 27, 2026
CNA Information
Analyst Note
Auto-imported from Google Project Zero — confirmed zero-day by definition.
Threat Actors 7
Lazarus Group
apt_group
Information theft and espionage
🇰🇵 KP
Turla Group
apt_group
Information theft and espionage
Russian Federation
Kimsuky
apt_group
Information theft and espionage
🇰🇷 KR
DNSpionage
apt_group
Information theft and espionage
🇮🇷 IR
Andariel Group
apt_group
🇰🇷 KR
TA406
apt_group
Information theft and espionage
🇰🇵 KP
Stolen Pencil
apt_group
Information theft and espionage
🇰🇷 KR
Triage Info
Decided atMar 05, 2026