CVE-2026-91839 Affecting network-manager-fortisslvpn package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-ECHOLATEST-NETWORKMANAGERFORTISSLVPN-19883803
- published17 Sept 2026
- disclosed25 Sept 2026
Introduced: 17 Sep 2026
CVE-2026-91839 (opens in a new tab)How to fix?
There is no fixed version for Echo:latest network-manager-fortisslvpn.
NVD Description
Note: Versions mentioned in the description apply only to the upstream network-manager-fortisslvpn package and not the network-manager-fortisslvpn package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
A flaw was found in NetworkManager-fortisslvpn, the FortiSSLVPN plugin for NetworkManager. The nm-fortisslvpn-service improperly handles carriage-return/line-feed (CR/LF) characters in VPN connection profile credentials. A local unprivileged user can exploit this by crafting a malicious VPN profile to inject additional configuration directives. This can lead to arbitrary code execution with root privileges when the crafted VPN connection is activated.