CVE-2018-8639 - Overview, Insights & Trends

CVE-2018-8639

Published Dec 12, 2018

Last updated 2 months ago

Overview

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." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8641.
Source
secure@microsoft.com
NVD status
Modified

Risk scores

CVSS 3.1

Type
Secondary
Base score
7.8
Impact score
5.9
Exploitability score
1.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity
HIGH

CVSS 3.0

Type
Primary
Base score
7.8
Impact score
5.9
Exploitability score
1.8
Vector string
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity
HIGH

CVSS 2.0

Type
Primary
Base score
7.2
Impact score
10
Exploitability score
3.9
Vector string
AV:L/AC:L/Au:N/C:C/I:C/A:C

Known exploits

Data from CISA

Vulnerability name
Microsoft Windows Win32k Improper Resource Shutdown or Release Vulnerability
Exploit added on
Mar 3, 2025
Exploit action due
Mar 24, 2025
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Weaknesses

nvd@nist.gov
CWE-404
134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE-404

Social media

Hype score
Not currently trending
  1. 米国サイバーセキュリティ・社会基盤安全保障庁(CISA)の既知の悪用された脆弱性カタログで、以下の脆弱性の悪用が確認された。 - WindowsのCVE-2018-8639, CVE-2024-30051 - SharePointのCVE-2024-38094 また、Ivanti社VPN製品群のCVE-2025-22457では、要求対策がハンティングを含むものに変更。 https://t.co/wQDUw2hGxs

    @__kokumoto

    7 Apr 2025

    1130 Impressions

    0 Retweets

    6 Likes

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  2. Cybersecurity guy here. The NIST and federal government is hiding the fact that the entire internet is comprised. Chaining exploits has created a HUGE vulnerability CVE-2018-8639, CVE-2023-20118, CVE-2023-20025… don’t believe me? Look it up @elonmusk @teameffujoe @JackPosobiec

    @erickman1979

    7 Mar 2025

    2 Impressions

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  3. CISAは、既知の悪用されている脆弱性カタログに新たに5つの脆弱性を追加したことを発表しました。 ・CVE-2023-20118 ・CVE-2022-43939 ・CVE-2022-43769 ・CVE-2018-8639 ・CVE-2024-4885 https://t.co/Exu8c4xTLv https://t.co/qxdw1Rse1y

    @t_nihonmatsu

    5 Mar 2025

    231 Impressions

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  4. CISA has added five critical vulnerabilities to its KEV catalog, with CVE-2018-8639 and CVE-2023-20118 exploited in the wild. Concerns grow over the agency's slow response. ⚠️ #CISACatalog #WindowsExploits #USA link: https://t.co/WpuiarTsDL https://t.co/fWRD4EuwUT

    @TweetThreatNews

    4 Mar 2025

    115 Impressions

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  5. CISA has identified vulnerabilities CVE-2023-20118 and CVE-2018-8639 in Cisco and Windows systems as actively exploited. CVE-2023-20118 allows command execution on specific VPN routers via an authentication bypass (CVE-2023-20025). https://t.co/q4hhOQPpoN

    @securityRSS

    4 Mar 2025

    51 Impressions

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  6. ⚠️ Vulnerability Alert: Cisco and Windows Vulnerabilities 📅 Timeline: Disclosure: 2025-03-03 🆔cveId: CVE-2023-20118, CVE-2018-8639 📊baseScore: 7.2 📏cvssMetrics: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H cvssSeverity: High 🟠 🛠️exploitMaturity: Actively Exploited… htt

    @syedaquib77

    4 Mar 2025

    72 Impressions

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  7. CISA has alerted US federal agencies to secure Cisco and Windows systems against actively exploited vulnerabilities. The flaws include CVE-2023-20118, allowing command execution on certain routers, and CVE-2018-8639, a Win32k elevation of privilege bug in Windows. #Security https

    @Strivehawk

    3 Mar 2025

    37 Impressions

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  8. CISA alerts US federal agencies about actively exploited vulnerabilities in Cisco and Windows systems. Addressing CVE-2023-20118 & CVE-2018-8639 is crucial for security by March 23. ⚠️🇺🇸 #CISAAlert #CyberRisks #USSecurity link: https://t.co/EKe5YhvAfA https://t.co/oiCJ0mdy

    @TweetThreatNews

    3 Mar 2025

    55 Impressions

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