How severe is CVE-2025-11299?

CVE-2025-11299 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-2025-11299 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-11299?

CVE-2025-11299 affects Belkin F9k1015 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-11299?

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-2025-11299 have an EU (EUVD) identifier?

Yes. CVE-2025-11299 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32228.

When was CVE-2025-11299 published?

CVE-2025-11299 was published on 2025-10-05 and last updated on 2026-06-17.

CVE-2025-11299

CVE-2025-11299 is a high-severity vulnerability in Belkin F9k1015 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-119.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
CVSS v4: 7.4
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-32228
Weakness: CWE-119
Affected product: Belkin F9k1015 Firmware
Published: 2025-10-05
Last modified: 2026-06-17

Description

A vulnerability was identified in Belkin F9K1015 1.00.10. The affected element is an unknown function of the file /goform/formWanTcpipSetup. The manipulation of the argument pppUserName leads to buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2025-11299?: A vulnerability was identified in Belkin F9K1015 1.00.10. The affected element is an unknown function of the file /goform/formWanTcpipSetup. The manipulation of the argument pppUserName leads to buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2025-11299?: CVE-2025-11299 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-2025-11299 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-11299?: CVE-2025-11299 affects Belkin F9k1015 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-11299?: 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-2025-11299 have an EU (EUVD) identifier?: Yes. CVE-2025-11299 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32228.
When was CVE-2025-11299 published?: CVE-2025-11299 was published on 2025-10-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:belkin:f9k1015_firmware:1.00.10:*:*:*:*:*:*:*

More vulnerabilities in Belkin F9k1015 Firmware

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