CVE-2026-75131

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Source
https://cve.org/CVERecord?id=CVE-2026-75131
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-75131.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-75131
Aliases
  • GHSA-v2wj-xr2m-xc4j
Downstream
Related
Published
2026-09-23T18:09:07Z
Modified
2026-09-25T03:48:39Z
Severity
  • 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
Summary
NetworkManager-l2tp Privilege Escalation via pppd Username Injection
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.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-88"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75131.json"
}
References

Affected packages

Git / github.com/nm-l2tp/networkmanager-l2tp

Affected ranges

Type
GIT
Repo
https://github.com/nm-l2tp/networkmanager-l2tp
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
ef970e2f3bf3e219d99c949b7a91a6bb55ab6ef7
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "1.52.4"
        },
        {
            "introduced":  "NetworkManager-l2tp"
        },
        {
            "fixed":  "1.52.4"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

0.*
0.1
0.2
0.3.0
0.3.1
0.3.2
0.3.3
0.9.4
0.9.6
0.9.8
0.9.8.4
0.9.8.5
0.9.8.6
0.9.8.7
1.*
1.2.4
1.2.6
1.2.8
1.20.0
1.20.10
1.20.12
1.20.14
1.20.16
1.20.18
1.20.2
1.20.20
1.20.22
1.20.4
1.20.6
1.20.8
1.52.0
1.52.2
1.8.0
1.8.2
1.8.4
1.8.6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-75131.json"