CVE-2026-19624: fallo de gravedad alta en NetworkManager-l2tp
NetworkManager-l2tp: local privilege escalation via ipsec.conf injection
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.8epss 0.1%
A flaw was found in NetworkManager-l2tp. The plugin writes attacker-controlled VPN connection properties (vpn.data and vpn.secrets values) unescaped into a generated ipsec.conf file that pluto loads as root. A local unprivileged user can create and activate their own L2TP VPN profile containing a newline-injected leftupdown directive; pluto executes that command as root when the IKE security association is established, resulting in local privilege escalation. This is the same bug class as CVE-2018-10900 (NetworkManager-vpnc).
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Productos afectados
NetworkManager-l2tpFedora · Extra Packages for Enterprise Linux (EPEL)Fedora · FedoraCVEs relacionadas — NetworkManager-l2tp
En el mismo producto, de las más peligrosas a las menos.
CVE-2023-1183MEDIUMArbitrary file writeEPSS 64.9%CVE-2023-3338MEDIUMCrash due to a null pointer dereference in the dn_nsp_send functionEPSS 8.5%CVE-2023-6246HIGHGlibc: heap-based buffer overflow in __vsyslog_internal()EPSS 4.8%CVE-2023-32248HIGHTree connection null pointer dereference denial-of-service vulnerabilityEPSS 4.1%CVE-2023-32252HIGHSession null pointer dereference denial-of-service vulnerabilityEPSS 4.1%CVE-2023-32247HIGHSession setup memory exhaustion denial-of-service vulnerabilityEPSS 3.9%
Referencias
https://bodhi.fedoraproject.org/updates/?packages=NetworkManager-l2tphttps://github.com/nm-l2tp/NetworkManager-l2tp/commit/3704d8c9d5e5f9ed1626a8ce7627a04247cea673https://github.com/nm-l2tp/NetworkManager-l2tp/commit/95b6b46f48a0c9eabc79272cd313f219110ef91chttps://github.com/nm-l2tp/NetworkManager-l2tp/releaseshttps://linnemanlabs.com/posts/nm-l2tp-newline-to-root/