How severe is CVE-2025-54399?

CVE-2025-54399 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-54399 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-54399?

CVE-2025-54399 affects Planet Wgr-500 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-54399?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-54399 have an EU (EUVD) identifier?

Yes. CVE-2025-54399 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32069.

When was CVE-2025-54399 published?

CVE-2025-54399 was published on 2025-10-07 and last updated on 2026-06-17.

CVE-2025-54399

CVE-2025-54399 is a high-severity vulnerability in Planet Wgr-500 Firmware with a CVSS 3.x base score of 8.8. 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-121.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-32069
Weakness: CWE-121
Affected product: Planet Wgr-500 Firmware
Published: 2025-10-07
Last modified: 2026-06-17

Description

Multiple stack-based buffer overflow vulnerabilities exist in the formPingCmd functionality of Planet WGR-500 v1.3411b190912. A specially crafted series of HTTP requests can lead to stack-based buffer overflow. An attacker can send a series of HTTP requests to trigger these vulnerabilities.This buffer overflow is related to the `ipaddr` request parameter for composing the `"ping -c <counts> <ipaddr> 2>&1 > %s &"` string.

Frequently asked questions

What is CVE-2025-54399?: Multiple stack-based buffer overflow vulnerabilities exist in the formPingCmd functionality of Planet WGR-500 v1.3411b190912. A specially crafted series of HTTP requests can lead to stack-based buffer overflow. An attacker can send a series of HTTP requests to trigger these vulnerabilities.This buffer overflow is related to the `ipaddr` request parameter for composing the `"ping -c <counts> <ipaddr> 2>&1 > %s &"` string.
How severe is CVE-2025-54399?: CVE-2025-54399 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-54399 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-54399?: CVE-2025-54399 affects Planet Wgr-500 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-54399?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-54399 have an EU (EUVD) identifier?: Yes. CVE-2025-54399 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32069.
When was CVE-2025-54399 published?: CVE-2025-54399 was published on 2025-10-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:planet:wgr-500_firmware:1.3411b190912:*:*:*:*:*:*:*

More vulnerabilities in Planet Wgr-500 Firmware

CVE-2025-54406 — High (CVSS 8.8): Multiple OS command injection vulnerabilities exist in the formPingCmd functionality of Planet WGR-500 v1.3411b190912.…
CVE-2025-54405 — High (CVSS 8.8): Multiple OS command injection vulnerabilities exist in the formPingCmd functionality of Planet WGR-500 v1.3411b190912.…
CVE-2025-54404 — High (CVSS 8.8): Multiple OS command injection vulnerabilities exist in the swctrl functionality of Planet WGR-500 v1.3411b190912. A…
CVE-2025-54403 — High (CVSS 8.8): Multiple OS command injection vulnerabilities exist in the swctrl functionality of Planet WGR-500 v1.3411b190912. A…
CVE-2025-54402 — High (CVSS 8.8): Multiple stack-based buffer overflow vulnerabilities exist in the formPingCmd functionality of Planet WGR-500…
CVE-2025-54401 — High (CVSS 8.8): Multiple stack-based buffer overflow vulnerabilities exist in the formPingCmd functionality of Planet WGR-500…

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