CVE-2026-42915

Published: Giu 09, 2026 Last Modified: Giu 11, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,7
Source: [email protected]
Attack Vector: adjacent_network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high

Description

AI Translation Available

Incorrect calculation of buffer size in Windows TCP/IP allows an authorized attacker to deny service over an adjacent 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
0,0021
Percentile
0,4th
Updated

EPSS Score Trend (Last 7 Days)

131

Incorrect Calculation of Buffer Size

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Availability Confidentiality
Potential Impacts:
Dos: Crash, Exit, Or Restart Execute Unauthorized Code Or Commands Read Memory Modify Memory
Applicable Platforms
Languages: Memory-Unsafe, C, C++
Likelihood of Exploit: High
View CWE Details
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 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 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 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
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2…
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42915