How severe is CVE-2025-56498?

CVE-2025-56498 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2025-56498 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-56498?

CVE-2025-56498 affects Prolink2u Pgn6401v Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-56498?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-56498 have an EU (EUVD) identifier?

Yes. CVE-2025-56498 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26602.

When was CVE-2025-56498 published?

CVE-2025-56498 was published on 2025-09-03 and last updated on 2026-06-17.

CVE-2025-56498

CVE-2025-56498 is a medium-severity vulnerability in Prolink2u Pgn6401v Firmware with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-26602
Weakness: CWE-78
Affected product: Prolink2u Pgn6401v Firmware
Published: 2025-09-03
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2025-56498?: 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.
How severe is CVE-2025-56498?: CVE-2025-56498 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2025-56498 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-56498?: CVE-2025-56498 affects Prolink2u Pgn6401v Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-56498?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-56498 have an EU (EUVD) identifier?: Yes. CVE-2025-56498 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26602.
When was CVE-2025-56498 published?: CVE-2025-56498 was published on 2025-09-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:prolink2u:pgn6401v_firmware:*:*:*:*:*:*:*:*

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