#VU107599 Improper Authentication in KDE.org products - CVE-2025-32898

Vulnerability identifier: #VU107599

Vulnerability risk: Medium

CVSSv4.0: 6.2 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-32898

CWE-ID: CWE-287

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
KDE Connect
Client/Desktop applications / Software for system administration
KDE Connect Android
Mobile applications / Apps for mobile phones
KDE Connect iOS
Mobile applications / Apps for mobile phones

Vendor: KDE.org

Description

The vulnerability allows an attacker to bypass authentication process.

The vulnerability exists due to usage of a weak authentication mechanism when pairing devices. KDE Connect displays an 8-character-long verification code when pairing two devices that is generated from the devices public keys. An attacker with physical proximity to device can brute-force the a key pair such that the resulting verification code matches the one of another device they try to impersonate.

Note, this attack can be launched remotely if an attacker has a presence in the victim's network through a compromised system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

KDE Connect: 0.1 - 25.03.90

KDE Connect Android: 0.1 - 1.32.11

KDE Connect iOS: 0.3.0 - 0.4.2

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External links
https://kde.org/info/security/advisory-20250418-3.txt

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.