A flaw was found in NetworkManager-sstp, the SSTP VPN plugin for NetworkManager. A local unprivileged user can exploit this vulnerability by embedding special characters, known as shell metacharacters, into VPN connection profile fields such as CA certificate or proxy settings. These unescaped characters are then processed by the `pppd` daemon, which runs with root privileges, allowing the attacker to execute arbitrary commands with elevated permissions when a malicious VPN connection is activated.
Metrics
Affected Vendors & Products
References
History
Sun, 27 Sep 2026 12:15:00 +0000
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Gnome
Gnome network Manager Sstp |
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| Vendors & Products |
Gnome
Gnome network Manager Sstp |
Fri, 25 Sep 2026 19:30:00 +0000
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| Metrics |
ssvc
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Fri, 25 Sep 2026 18:00:00 +0000
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| Description | A flaw was found in NetworkManager-sstp, the SSTP VPN plugin for NetworkManager. A local unprivileged user can exploit this vulnerability by embedding special characters, known as shell metacharacters, into VPN connection profile fields such as CA certificate or proxy settings. These unescaped characters are then processed by the `pppd` daemon, which runs with root privileges, allowing the attacker to execute arbitrary commands with elevated permissions when a malicious VPN connection is activated. | |
| Title | Networkmanager-sstp: networkmanager-sstp: local privilege escalation to root via shell injection in vpn profile fields | |
| Weaknesses | CWE-78 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: fedora
Published: 2026-09-25T17:51:44.357Z
Updated: 2026-09-25T18:16:17.928Z
Reserved: 2026-09-15T08:28:01.333Z
Link: CVE-2026-91838
Updated: 2026-09-25T18:16:13.869Z
Status : Deferred
Published: 2026-09-25T18:17:32.530
Modified: 2026-09-30T19:57:08.043
Link: CVE-2026-91838
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