Description
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.
Published: 2026-09-25
Score: 7.8 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Workaround

If the NetworkManager-fortisslvpn plugin is not required, remove the `NetworkManager-fortisslvpn` package to eliminate the attack vector. To remove the package: `sudo dnf remove NetworkManager-fortisslvpn` This action may impact systems that rely on FortiSSLVPN connectivity. A system restart may be required for the changes to take full effect.

Tracking

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Advisories

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History

Fri, 25 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 25 Sep 2026 18:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Networkmanager-fortisslvpn: networkmanager-fortisslvpn: local privilege escalation to root via crlf injection in vpn profile credentials
Weaknesses CWE-93
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: fedora

Published:

Updated: 2026-09-25T18:15:49.928Z

Reserved: 2026-09-15T08:28:01.333Z

Link: CVE-2026-91839

cve-icon Vulnrichment

Updated: 2026-09-25T18:15:46.205Z

cve-icon NVD

Status : Received

Published: 2026-09-25T18:17:32.660

Modified: 2026-09-25T19:17:58.760

Link: CVE-2026-91839

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-25T20:30:17Z

Weaknesses
  • CWE-93

    Improper Neutralization of CRLF Sequences ('CRLF Injection')