# CVE-2025-56498: CVE-2025-56498

Status: published. Published: 2025-09-03. Updated: 2026-11-07.

An OS command injection vulnerability exists in PLDT WiFi Router's Prolink PGN6401V Firmware 8.1.2 web management interface. The ping6.asp page submits user input to the /boaform/formPing6 endpoint via the pingAddr parameter, which is not properly sanitized. An authenticated attacker can exploit this flaw by injecting arbitrary system commands, which are executed by the underlying operating system with root privileges. The router uses the Boa web server (version 0.93.15) to handle the request. Successful exploitation can lead to full system compromise and unauthorized control of the network device.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- prolink2u / pgn6401v_firmware: ≤ 8.1.2 (affected, custom). Source: NVD; conditional on NVD configuration criteria

## NVD configuration conditions

Affected CPE matches depend on the following AND/OR and negation conditions:

```json
[
  {
    "negate": false,
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:o:prolink2u:pgn6401v_firmware:*:*:*:*:*:*:*:*",
            "versionEndIncluding": "8.1.2",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      },
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:h:prolink2u:pgn6401v:-:*:*:*:*:*:*:*",
            "vulnerable": false
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ],
    "operator": "AND"
  }
]
```

## Severity and prioritization

- CVSS 3.1: 5.3 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N; source: NVD: 134c704f-9b21-4f2e-91b3-4a467353bcc0

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: exploitation poc; automatable no; technical impact total; source NVD SSVC: 134c704f-9b21-4f2e-91b3-4a467353bcc0

- Weaknesses: CWE-78

## Exploit evidence

- exploit: https://github.com/Jorge2Rubio/CVEs/blob/main/CVE-2025-56498.md (cve@mitre.org)

## References

- https://github.com/Jorge2Rubio/CVEs/blob/main/CVE-2025-56498.md (cve@mitre.org; Exploit, Third Party Advisory)

- https://prolink2u.com/products/pgn6401v (cve@mitre.org; Product)

## Provenance

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-56498; retrieved 2026-11-07; source updated 2026-11-07

Revision: 0479bb02367eea28688efccd6475aa1c9a5a7e4e4143d1a982c584ba30cad0e9

Canonical: https://y2.dev/cve/CVE-2025-56498

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