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Solution
No solution given by the vendor.
Workaround
If vpnc VPN connections are not required, the NetworkManager-vpnc package can be removed to eliminate the vulnerability. This action will prevent the system from establishing vpnc-based VPN connections. To remove the package, execute the following command as root: `# dnf remove NetworkManager-vpnc` Note that removing this package may impact functionality if vpnc VPNs are actively used.
Fri, 25 Sep 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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-vpnc. This vulnerability allows a local unprivileged user to escalate privileges to root. By injecting a newline character into the VPN username field, an attacker can manipulate the vpnc configuration to execute an arbitrary program with root privileges when the malicious VPN connection is activated. | |
| Title | Networkmanager-vpnc: networkmanager-vpnc: local privilege escalation to root via newline injection in vpn username | |
| Weaknesses | CWE-93 | |
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: fedora
Published:
Updated: 2026-09-25T18:15:12.060Z
Reserved: 2026-09-15T08:28:01.333Z
Link: CVE-2026-91840
Updated: 2026-09-25T18:15:07.267Z
Status : Received
Published: 2026-09-25T18:17:32.793
Modified: 2026-09-25T19:17:58.877
Link: CVE-2026-91840
No data.
OpenCVE Enrichment
Updated: 2026-09-25T20:30:17Z