UBUNTU-CVE-2026-75131

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Source
https://ubuntu.com/security/CVE-2026-75131
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75131.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-75131
Upstream
Published
2026-09-23T19:19:00Z
Modified
2026-10-01T00:22:10Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 8.5 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

NetworkManager-l2tp through 1.52.4, fixed in 1.52.6, contains a privilege escalation vulnerability that allows local users with permission to create VPN connections to execute arbitrary code as root by injecting pppd options through a crafted VPN username. Attackers can embed a double-quote character or whitespace in the username to break out of the pppd options file quoting context and include the pppd plugin directive, causing the privileged pppd process to load an attacker-controlled shared object.

References

Affected packages

Ubuntu:18.04:LTS / network-manager-l2tp

Package

Name
network-manager-l2tp
Purl
pkg:deb/ubuntu/network-manager-l2tp?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.2.8-1
1.2.8-2build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "network-manager-l2tp",
            "binary_version": "1.2.8-2build1"
        },
        {
            "binary_name": "network-manager-l2tp-gnome",
            "binary_version": "1.2.8-2build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75131.json"

Ubuntu:20.04:LTS / network-manager-l2tp

Package

Name
network-manager-l2tp
Purl
pkg:deb/ubuntu/network-manager-l2tp?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.2.10-1
1.2.14-1
1.2.16-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "network-manager-l2tp",
            "binary_version": "1.2.16-1"
        },
        {
            "binary_name": "network-manager-l2tp-gnome",
            "binary_version": "1.2.16-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75131.json"

Ubuntu:22.04:LTS / network-manager-l2tp

Package

Name
network-manager-l2tp
Purl
pkg:deb/ubuntu/network-manager-l2tp?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.2.18-1build1
1.20.0-1
1.20.0-1build1
1.20.0-1build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "network-manager-l2tp",
            "binary_version": "1.20.0-1build2"
        },
        {
            "binary_name": "network-manager-l2tp-gnome",
            "binary_version": "1.20.0-1build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75131.json"

Ubuntu:24.04:LTS / network-manager-l2tp

Package

Name
network-manager-l2tp
Purl
pkg:deb/ubuntu/network-manager-l2tp?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.20.8-1
1.20.10-1
1.20.12-1
1.20.12-1build1
1.20.12-1build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "network-manager-l2tp",
            "binary_version": "1.20.12-1build2"
        },
        {
            "binary_name": "network-manager-l2tp-gnome",
            "binary_version": "1.20.12-1build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75131.json"

Ubuntu:26.04:LTS / network-manager-l2tp

Package

Name
network-manager-l2tp
Purl
pkg:deb/ubuntu/network-manager-l2tp?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.20.20-2
1.52.0-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "network-manager-l2tp",
            "binary_version": "1.52.0-2"
        },
        {
            "binary_name": "network-manager-l2tp-gnome",
            "binary_version": "1.52.0-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75131.json"