CVE-2025-40979

HIGH

Windows 11 <1.27.8 - Local RCE

Title source: llm
STIX 2.1

Description

DLL search order hijacking vulnerability in the wave.exe executable for Windows 11, version 1.27.8. Exploitation of this vulnerability could allow attackers with local access to execute arbitrary code by placing an arbitrary file in the 'C:\Users<user>\AppData\Local\Temp' directory, which could lead to arbitrary code execution and persistence. This vulnerability is only replicable in versions of Windows 11 and does not affect earlier versions.

Scores

CVSS v4 7.0
EPSS 0.0002
EPSS Percentile 5.6%
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-427
Status published
Products (1)
Grandstream Networks/Wave < 1.27.11
Published Sep 10, 2025
Tracked Since Feb 18, 2026