CVE-2026-42915

EUVD-2026-35727
Incorrect calculation of buffer size in Windows TCP/IP allows an authorized attacker to deny service over an adjacent network.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.7 MEDIUM
ADJACENT_NETWORK
LOW
LOW
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Windows Releases
Platform
Version
Windows 10
21H2 (arm64, x64, x86)
KB5094127
22H2 (arm64, x64, x86)
KB5094127
Windows 11
23H2 (arm64, x64)
KB5093998
24H2 (arm64, x64)
KB5094126
25H2 (arm64, x64)
KB5094126
26H1 (arm64, x64)
KB5095051
Windows Server 2022
Server Core
KB5094128
Standard
KB5094128
Windows Server 2025
Server Core
KB5094125
Standard
KB5094125
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42915