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CVE-2026-26143— Microsoft PowerShell Security Feature Bypass Vulnerability

CVSS 7.8 · High EPSS 0.11% · P28
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I. Basic Information for CVE-2026-26143

Vulnerability Information
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Vulnerability Title
Microsoft PowerShell Security Feature Bypass Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Improper input validation in Microsoft PowerShell allows an unauthorized attacker to bypass a security feature locally.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft PowerShell 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft PowerShell是美国微软（Microsoft）公司的一种由微软开发的跨平台任务自动化解决方案，包含命令行 Shell、脚本语言和配置管理框架。 Microsoft PowerShell存在输入验证错误漏洞。攻击者利用该漏洞可以绕过某些功能。以下产品和版本受到影响：PowerShell 7.5,PowerShell 7.4。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
MicrosoftPowerShell 7.4 7.4.0 ~ 7.4.14 -
MicrosoftPowerShell 7.5 7.5.0 ~ 7.5.5 -

II. Public POCs for CVE-2026-26143

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III. Intelligence Information for CVE-2026-26143

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Same Patch Batch · Microsoft · 2026-04-14 · 163 CVEs total

CVE-2026-338249.8 CRITICALWindows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability
CVE-2026-261499.0 CRITICALMicrosoft Power Apps Desktop Client Spoofing Vulnerability
CVE-2026-261788.8 HIGHWindows Advanced Rasterization Platform Elevation of Privilege Vulnerability
CVE-2026-331208.8 HIGHMicrosoft SQL Server Remote Code Execution Vulnerability
CVE-2026-321578.8 HIGHRemote Desktop Client Remote Code Execution Vulnerability
CVE-2026-321718.8 HIGHAzure Logic Apps Elevation of Privilege Vulnerability
CVE-2026-322258.8 HIGHWindows Shell Security Feature Bypass Vulnerability
CVE-2026-261678.8 HIGHWindows Push Notifications Elevation of Privilege Vulnerability
CVE-2026-279288.7 HIGHWindows Hello Security Feature Bypass Vulnerability
CVE-2026-321628.4 HIGHWindows COM Elevation of Privilege Vulnerability
CVE-2026-331158.4 HIGHMicrosoft Word Remote Code Execution Vulnerability
CVE-2026-320918.4 HIGHMicrosoft Brokering File System Elevation of Privilege Vulnerability
CVE-2026-322218.4 HIGHWindows Graphics Component Remote Code Execution Vulnerability
CVE-2026-321908.4 HIGHMicrosoft Office Remote Code Execution Vulnerability
CVE-2026-331148.4 HIGHMicrosoft Word Remote Code Execution Vulnerability
CVE-2026-338278.1 HIGHWindows TCP/IP Remote Code Execution Vulnerability
CVE-2026-338268.0 HIGHWindows Active Directory Remote Code Execution Vulnerability
CVE-2026-279128.0 HIGHWindows Kerberos Elevation of Privilege Vulnerability
CVE-2026-330957.8 HIGHMicrosoft Word Remote Code Execution Vulnerability
CVE-2026-321927.8 HIGHAzure Monitor Agent Elevation of Privilege Vulnerability

Showing top 20 of 163 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: PowerShell 7.4
Same vendor: Microsoft
Same weakness: CWE-20

V. Comments for CVE-2026-26143

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