Public mode

No access to your tenant or devices. Every item links to its source. What this means

CVE-2026-93337

NetworkManager-l2tp Privilege Escalation via pppd Plugin Injection

CVSS 4.0 8.5 HIGHCVSS 3.1 7.8 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-93337

Published

NetworkManager-l2tp through 1.52.4, fixed in 1.52.6, contains an improper input validation vulnerability that allows local users with VPN connection creation permissions to inject arbitrary pppd directives by supplying mru or mtu property values containing trailing non-numeric content after a valid integer. Attackers can exploit the verbatim write of unvalidated strings into the pppd options file via write_config_option() to inject the plugin directive, causing the privileged pppd process to load an attacker-controlled shared object and achieve arbitrary code execution as root.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-93337

Published

NetworkManager-l2tp

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "defaultStatus": "unaffected",
                    "vendor": "nm-l2tp",
                    "product": "NetworkManager-l2tp",
                    "packageURL": "pkg:github/nm-l2tp/NetworkManager-l2tp",
                    "repo": "https://github.com/nm-l2tp/NetworkManager-l2tp",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "versionType": "semver",
                            "lessThanOrEqual": "1.52.4"
                        },
                        {
                            "status": "unaffected",
                            "version": "1.52.6",
                            "versionType": "semver"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON