How severe is CVE-2026-5628?

CVE-2026-5628 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-2026-5628 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-5628?

CVE-2026-5628 affects Belkin F9k1015 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-5628?

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-2026-5628 have an EU (EUVD) identifier?

Yes. CVE-2026-5628 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19180.

When was CVE-2026-5628 published?

CVE-2026-5628 was published on 2026-04-06 and last updated on 2026-06-17.

CVE-2026-5628

CVE-2026-5628 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% (47th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19180
Weakness: CWE-119
Affected product: Belkin F9k1015 Firmware
Published: 2026-04-06
Last modified: 2026-06-17

Description

A security vulnerability has been detected in Belkin F9K1015 1.00.10. Impacted is the function formSetSystemSettings of the file /goform/formSetSystemSettings of the component Setting Handler. The manipulation of the argument webpage leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2026-5628?: A security vulnerability has been detected in Belkin F9K1015 1.00.10. Impacted is the function formSetSystemSettings of the file /goform/formSetSystemSettings of the component Setting Handler. The manipulation of the argument webpage leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2026-5628?: CVE-2026-5628 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-2026-5628 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-5628?: CVE-2026-5628 affects Belkin F9k1015 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5628?: 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-2026-5628 have an EU (EUVD) identifier?: Yes. CVE-2026-5628 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19180.
When was CVE-2026-5628 published?: CVE-2026-5628 was published on 2026-04-06 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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