CVE-2026-91838 NetworkManager-sstp - Command Injection

NetworkManager-sstp contains a command injection caused by unescaped shell metacharacters in VPN connection profile fields processed by pppd daemon, letting local unprivileged users execute commands with root privileges, exploit requires local access.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.10% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Command Injection
Impact
Remote Code Execution
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-78

Vendor fix

Update to the latest version with proper input sanitization.

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

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