CVE-2026-47291

Published: Giu 09, 2026 Last Modified: Giu 10, 2026
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

Integer overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code over a network.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0020
Percentile
0,4th
Updated

EPSS Score Trend (Last 5 Days)

122

Heap-based Buffer Overflow

Draft
Abstraction: Variant Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Integrity Confidentiality Access Control Other
Potential Impacts:
Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Execute Unauthorized Code Or Commands Bypass Protection Mechanism Modify Memory Other
Applicable Platforms
Languages: Memory-Unsafe, C, C++
Likelihood of Exploit: High
View CWE Details
190

Integer Overflow or Wraparound

Stable
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Integrity Confidentiality Access Control Other
Potential Impacts:
Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Memory) Dos: Instability Modify Memory Execute Unauthorized Code Or Commands Bypass Protection Mechanism Alter Execution Logic Dos: Resource Consumption (Cpu)
Applicable Platforms
Languages: Not Language-Specific, C
Likelihood of Exploit: Medium
View CWE Details
Operating System

Windows 10 1607 by Microsoft

Product Information
Vendor Microsoft
Product Windows 10 1607
Version Range Affected
To 10.0.14393.9234 (exclusive)
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 10 1809 by Microsoft

Product Information
Vendor Microsoft
Product Windows 10 1809
Version Range Affected
To 10.0.17763.8880 (exclusive)
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows Server 2019 by Microsoft

Product Information
Vendor Microsoft
Product Windows Server 2019
Version Range Affected
To 10.0.17763.8880 (exclusive)
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 11 25H2 by Microsoft

Product Information
Vendor Microsoft
Product Windows 11 25H2
Version Range Affected
To 10.0.26200.8655 (exclusive)
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 11 25H2 by Microsoft

Product Information
Vendor Microsoft
Product Windows 11 25H2
Version Range Affected
To 10.0.26200.8655 (exclusive)
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 10 1607 by Microsoft

Product Information
Vendor Microsoft
Product Windows 10 1607
Version Range Affected
To 10.0.14393.9234 (exclusive)
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows Server 2022 by Microsoft

Product Information
Vendor Microsoft
Product Windows Server 2022
Version Range Affected
To 10.0.20348.5256 (exclusive)
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 11 24H2 by Microsoft

Product Information
Vendor Microsoft
Product Windows 11 24H2
Version Range Affected
To 10.0.26100.8655 (exclusive)
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 10 21H2 by Microsoft

Product Information
Vendor Microsoft
Product Windows 10 21H2
Version Range Affected
To 10.0.19044.7417 (exclusive)
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 11 23H2 by Microsoft

Product Information
Vendor Microsoft
Product Windows 11 23H2
Version Range Affected
To 10.0.22631.7219 (exclusive)
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 10 22H2 by Microsoft

Product Information
Vendor Microsoft
Product Windows 10 22H2
Version Range Affected
To 10.0.19045.7417 (exclusive)
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 11 26H1 by Microsoft

Product Information
Vendor Microsoft
Product Windows 11 26H1
Version Range Affected
To 10.0.28000.2269 (exclusive)
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 10 21H2 by Microsoft

Product Information
Vendor Microsoft
Product Windows 10 21H2
Version Range Affected
To 10.0.19044.7417 (exclusive)
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 11 23H2 by Microsoft

Product Information
Vendor Microsoft
Product Windows 11 23H2
Version Range Affected
To 10.0.22631.7219 (exclusive)
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 11 26H1 by Microsoft

Product Information
Vendor Microsoft
Product Windows 11 26H1
Version Range Affected
To 10.0.28000.2269 (exclusive)
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 10 21H2 by Microsoft

Product Information
Vendor Microsoft
Product Windows 10 21H2
Version Range Affected
To 10.0.19044.7417 (exclusive)
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows Server 2012 by Microsoft

Product Information
Vendor Microsoft
Product Windows Server 2012
Version -
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows Server 2016 by Microsoft

Product Information
Vendor Microsoft
Product Windows Server 2016
Version Range Affected
To 10.0.14393.9234 (exclusive)
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 10 22H2 by Microsoft

Product Information
Vendor Microsoft
Product Windows 10 22H2
Version Range Affected
To 10.0.19045.7417 (exclusive)
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 10 22H2 by Microsoft

Product Information
Vendor Microsoft
Product Windows 10 22H2
Version Range Affected
To 10.0.19045.7417 (exclusive)
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows Server 2012 by Microsoft

Product Information
Vendor Microsoft
Product Windows Server 2012
Version r2
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows Server 2025 by Microsoft

Product Information
Vendor Microsoft
Product Windows Server 2025
Version Range Affected
To 10.0.26100.32995 (exclusive)
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 11 24H2 by Microsoft

Product Information
Vendor Microsoft
Product Windows 11 24H2
Version Range Affected
To 10.0.26100.8655 (exclusive)
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 10 1809 by Microsoft

Product Information
Vendor Microsoft
Product Windows 10 1809
Version Range Affected
To 10.0.17763.8880 (exclusive)
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
Common Platform Enumeration - Standardized vulnerability identification
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2…
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47291