SB2025112709 - MitM attack in KDE Connect
Published: November 27, 2025 Updated: November 28, 2025
Security Bulletin ID
SB2025112709
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Insufficient verification of data authenticity (CVE-ID: CVE-2025-66270)
CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a MitM attack.
The vulnerability exists due to the application allows device identifiers to be changed during handshake in core/backends/lan/lanlinkprovider.cpp. A remote attacker can perform MitM attack and gain unauthorized access to the system.
Remediation
Install update from vendor's website.