---
title: "CVE-2026-91839: NetworkManager-fortisslvpn - Command Injection"
description: "NetworkManager-fortisslvpn contains a command injection caused by improper handling of CR/LF characters in VPN connection profile credentials, letting local unprivileged users execute arbitrary code with root privileges, exploit requires crafted VPN profile."
url: https://panop.io/threat-heartbeat/CVE-2026-91839/
---

# CVE-2026-91839 NetworkManager-fortisslvpn - Command Injection

NetworkManager-fortisslvpn contains a command injection caused by improper handling of CR/LF characters in VPN connection profile credentials, letting local unprivileged users execute arbitrary code with root privileges, exploit requires crafted VPN profile.

CVSS base score 7.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.20% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-91839)

## Details

Type

Command Injection

Impact

Remote Code Execution, Privilege Escalation

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Published

25 September 2026

Updated

15 October 2026

Weakness

[CWE-93](https://cwe.mitre.org/data/definitions/93.html)

## Vendor fix

Update to the latest version of NetworkManager-fortisslvpn.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-91839](https://nvd.nist.gov/vuln/detail/CVE-2026-91839)
- [https://access.redhat.com/security/cve/CVE-2026-91839](https://access.redhat.com/security/cve/CVE-2026-91839)
- [https://bugzilla.redhat.com/show\_bug.cgi?id=2533640](https://bugzilla.redhat.com/show_bug.cgi?id=2533640)
- [https://gitlab.gnome.org/Archive/NetworkManager-fortisslvpn/-/work\_items/80](https://gitlab.gnome.org/Archive/NetworkManager-fortisslvpn/-/work_items/80)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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