CVE-2025-66270: The KDE Connect protocol 8 before 2025-11-28 does not correlate device IDs across two packets. This affects KDE Connect before 25.12 on desktop, KDE Connect…

PriorityP420medium4.7CVSS 3.1

AVAACHPRNUINSCCLILAN

EPSS

0.18%

7.3th percentile

The KDE Connect protocol 8 before 2025-11-28 does not correlate device IDs across two packets. This affects KDE Connect before 25.12 on desktop, KDE Connect before 0.5.4 on iOS, KDE Connect before 1.34.4 on Android, GSConnect before 68, and Valent before 1.0.0.alpha.49.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
debian	gnome-shell-extension-gsconnect	< gnome-shell-extension-gsconnect 71-1 (forky)	gnome-shell-extension-gsconnect 71-1 (forky)
debian	kdeconnect	< gnome-shell-extension-gsconnect 71-1 (forky)	gnome-shell-extension-gsconnect 71-1 (forky)
kde	kde_connect_protocol	—	—
kde	kdeconnect	>= 0 < 25.04.2-1+deb13u1	25.04.2-1+deb13u1
kde	kdeconnect	>= 0 < 25.11.80+git20251121.7090b106-1	25.11.80+git20251121.7090b106-1

CVSS provenance

nvdv3.14.7MEDIUMCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

osv4.7MEDIUM

vendor_debian4.7LOW

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