CVE catalog
CVE-2026-91839
network-manager-fortisslvpn: CVE-2026-91839
- Severity
- High · CVSS 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.20% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | network-manager-fortisslvpn | bookworm | 1.4.0-0.1 | vulnerable |
| Ubuntu | network-manager-fortisslvpn | 18.04 | 1.2.8-1 | vulnerable |
| Ubuntu | network-manager-fortisslvpn | 18.04 | 1.2.8-1build1 | vulnerable |
| Ubuntu | network-manager-fortisslvpn | 18.04 | 1.2.8-1ubuntu1 | vulnerable |
| Ubuntu | network-manager-fortisslvpn | 20.04 | 1.2.8-2 | vulnerable |
| Ubuntu | network-manager-fortisslvpn | 20.04 | 1.2.10-0ubuntu1 | vulnerable |
| Ubuntu | network-manager-fortisslvpn | 22.04 | 1.2.10-0ubuntu2 | vulnerable |
| Ubuntu | network-manager-fortisslvpn | 22.04 | 1.2.10-0ubuntu3 | vulnerable |
| Ubuntu | network-manager-fortisslvpn | 24.04 | 1.4.0-0.1 | vulnerable |
| Ubuntu | network-manager-fortisslvpn | 24.04 | 1.4.0-1 | vulnerable |
| Ubuntu | network-manager-fortisslvpn | 24.04 | 1.4.0-1build1 | vulnerable |
| Ubuntu | network-manager-fortisslvpn | 24.04 | 1.4.0-1build2 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | network-manager-fortisslvpn | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [network-manager-fortisslvpn]Affected
Details (2)
1.4.0-0.1· amd64 · bookwormAffected
dsa · network-manager-fortisslvpn · debian · bookworm; dsa · network-manager-fortisslvpn · debian · 12
1.4.0-0.1· arm64 · bookwormAffected
dsa · network-manager-fortisslvpn · debian · bookworm; dsa · network-manager-fortisslvpn · debian · 12
- [network-manager-fortisslvpn-gnome]Affected
Source package: [network-manager-fortisslvpn]
Details (2)
1.4.0-0.1· amd64 · bookwormAffected
dsa · network-manager-fortisslvpn · debian · bookworm; dsa · network-manager-fortisslvpn · debian · 12
1.4.0-0.1· arm64 · bookwormAffected
dsa · network-manager-fortisslvpn · debian · bookworm; dsa · network-manager-fortisslvpn · debian · 12
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-91839]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-91839]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-91839]
- [https://security-tracker.debian.org/tracker/CVE-2026-91839]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-91839.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]