[ CVE-2026-91840 · Published 25 Sep 2026 ]
Vulnerability in GNOME NetworkManager-vpnc
CVSS 7.8
EPSS <1%No fix listed yet
[ Description ]Official description
A flaw was found in NetworkManager-vpnc. This vulnerability allows a local unprivileged user to escalate privileges to root. By injecting a newline character into the VPN username field, an attacker can manipulate the vpnc configuration to execute an arbitrary program with root privileges when the malicious VPN connection is activated.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.