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TI-2025-35355 Aliases CVE-2025-56498GHSA-crh3-pqq2-w5xm

An OS command injection vulnerability exists in PLDT WiFi Router's Prolink PGN6401V…

Priority MEDIUM 59CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
None · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01722 77th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:prolink2u:pgn6401v_firmware:*:*:*:*:*:*:*:*up to 8.1.2VulnerableProlink2u
cpe:2.3:h:prolink2u:pgn6401v:-:*:*:*:*:*:*:*not specified by NVDRunning onProlink2u
  • cpe:2.3:o:prolink2u:pgn6401v_firmware:*:*:*:*:*:*:*:* Versions up to 8.1.2 Vulnerable ·Prolink2u
  • cpe:2.3:h:prolink2u:pgn6401v:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Prolink2u

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-56498
  2. 2026-10-03 Alias added: GHSA-crh3-pqq2-w5xm

References

Exploit 1

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences