SB2025120337 - Ubuntu update for kdeconnect



SB2025120337 - Ubuntu update for kdeconnect

Published: December 3, 2025

Security Bulletin ID SB2025120337
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • 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.