Vulnerability-Lookup

GHSA-GG6Q-95GX-P8R8

Vulnerability from github – Published: 2026-10-15 21:36 – Updated: 2026-10-15 21:36

Details

Netgate pfSense CE through 2.9.0 contains a newline injection vulnerability in services_pppoe_edit.php that allows privileged users to inject mpd.secret entries via unvalidated username POST fields. Attackers with the PPPoE Server Edit privilege can add a line whose secret begins with '!', making mpd5 run commands as root when a PPPoE client authenticates.

Severity

6.6 (Medium)


                  
                    CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

7.5 (High)


                  
                    CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-111219"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-93"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-15T19:17:34Z",
    "severity": "HIGH"
  },
  "details": "Netgate pfSense CE through 2.9.0 contains a newline injection vulnerability in services_pppoe_edit.php that allows privileged users to inject mpd.secret entries via unvalidated username POST fields. Attackers with the PPPoE Server Edit privilege can add a line whose secret begins with \u0027!\u0027, making mpd5 run commands as root when a PPPoE client authenticates.",
  "id": "GHSA-gg6q-95gx-p8r8",
  "modified": "2026-10-15T21:36:11Z",
  "published": "2026-10-15T21:36:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111219"
    },
    {
      "type": "WEB",
      "url": "https://abraxaslabs.tech/research/pfsense-ce-leftovers"
    },
    {
      "type": "WEB",
      "url": "https://github.com/abraxas/pfsense-pppoe-secret-bang"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/vpn.inc#L272-L282"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/services_pppoe_edit.php#L141-L152"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-command-injection-via-pppoe-server-username"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-111219 (GCVE-0-2026-111219)

Vulnerability from cvelistv5 – Published: 2026-10-15 18:46 – Updated: 2026-10-16 17:11

Title

Netgate pfSense CE through 2.9.0 Command Injection via PPPoE Server Username

Summary

Severity

7.5 (High)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

6.6 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-16 16:29 UTC

CWE

CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 6373 records in the last 180 days details

References

5 references

URL	Tags
https://github.com/abraxas/pfsense-pppoe-secret-bang	exploittechnical-description
https://abraxaslabs.tech/research/pfsense-ce-leftovers	technical-description
https://github.com/pfsense/pfsense/blob/9363ac5b8…	technical-description
https://github.com/pfsense/pfsense/blob/9363ac5b8…	technical-description
https://www.vulncheck.com/advisories/netgate-pfse…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Netgate	pfSense CE	Affected: 0 , ≤ 2.9.0 (semver) cpe:2.3:a:netgate:pfsense::::::::

Date Public

2026-10-15 04:49

Credits

Abraxas Labs

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
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                "id": "CVE-2026-111219",
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                  {
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                  },
                  {
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                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-16T16:29:14.127629Z",
                "version": "2.0.3"
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          "dateUpdated": "2026-10-16T17:11:33.240Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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          "packageURL": "pkg:github/pfsense/pfsense",
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    "state": "PUBLISHED"
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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