CVE catalog
CVE-2026-19624
network-manager-l2tp: CVE-2026-19624
- Severity
- High · CVSS 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.13% · Oct 25, 2026
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).
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | network-manager-l2tp | sid | 1.52.6-1 | fixed |
| Debian | network-manager-l2tp | forky | 1.52.6-1 | fixed |
| Debian | network-manager-l2tp | trixie | 1.20.20-2 | vulnerable |
| Debian | network-manager-l2tp | trixie-security | 1.20.20-2+deb13u1 | fixed |
| Debian | network-manager-l2tp | bookworm | 1.20.8-1 | vulnerable |
| Debian | network-manager-l2tp | bookworm-security | 1.20.8-1+deb12u1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | network-manager-l2tp | source | sid | 1.52.6-1 | not yet assigned | Not reported | Not reported |
| Debian | network-manager-l2tp | source | forky | 1.52.6-1 | not yet assigned | Not reported | Not reported |
| Debian | network-manager-l2tp | source | trixie | 1.20.20-2+deb13u1 | not yet assigned | Not reported | Not reported |
| Debian | network-manager-l2tp | source | bookworm | 1.20.8-1+deb12u1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [network-manager-l2tp]Affected
Details (2)
1.20.8-1· amd64 · bookwormAffected · Fixed:
1.20.8-1+deb12u1dsa · network-manager-l2tp · debian · bookworm; dsa · network-manager-l2tp · debian · 12
1.20.8-1· arm64 · bookwormAffected · Fixed:
1.20.8-1+deb12u1dsa · network-manager-l2tp · debian · bookworm; dsa · network-manager-l2tp · debian · 12
- [network-manager-l2tp-gnome]Affected
Source package: [network-manager-l2tp]
Details (2)
1.20.8-1· amd64 · bookwormAffected · Fixed:
1.20.8-1+deb12u1dsa · network-manager-l2tp · debian · bookworm; dsa · network-manager-l2tp · debian · 12
1.20.8-1· arm64 · bookwormAffected · Fixed:
1.20.8-1+deb12u1dsa · network-manager-l2tp · debian · bookworm; dsa · network-manager-l2tp · debian · 12
[Debian 13 (Trixie)]
- [network-manager-l2tp]Affected
Details (3)
1.20.20-2· amd64 · trixieAffected · Fixed:
1.20.20-2+deb13u1dsa · network-manager-l2tp · debian · 13
1.20.20-2· arm64 · trixieAffected · Fixed:
1.20.20-2+deb13u1dsa · network-manager-l2tp · debian · 13
1.20.20-2+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.20.20-2+deb13u1dsa · network-manager-l2tp · debian · 13
- [network-manager-l2tp-gnome]Affected
Source package: [network-manager-l2tp]
Details (3)
1.20.20-2· amd64 · trixieAffected · Fixed:
1.20.20-2+deb13u1dsa · network-manager-l2tp · debian · 13
1.20.20-2· arm64 · trixieAffected · Fixed:
1.20.20-2+deb13u1dsa · network-manager-l2tp · debian · 13
1.20.20-2+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.20.20-2+deb13u1dsa · network-manager-l2tp · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-19624]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-19624]
- [https://security-tracker.debian.org/tracker/CVE-2026-19624]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-19624.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]