How severe is CVE-2018-16656?

CVE-2018-16656 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-16656 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-16656?

CVE-2018-16656 primarily affects Kyocera Taskalfa 4002i Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-16656?

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.

When was CVE-2018-16656 published?

CVE-2018-16656 was published on 2019-05-14 and last updated on 2026-06-17.

CVE-2018-16656

CVE-2018-16656 is a high-severity vulnerability in Kyocera Taskalfa 4002i Firmware with a CVSS 3.x base score of 7.5. 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-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Kyocera Taskalfa 4002i Firmware
Published: 2019-05-14
Last modified: 2026-06-17

Description

DoBox_CstmBox_Info.model.htm on Kyocera TASKalfa 4002i and 6002i devices allows remote attackers to read the documents of arbitrary users via a modified HTTP request.

Frequently asked questions

What is CVE-2018-16656?: DoBox_CstmBox_Info.model.htm on Kyocera TASKalfa 4002i and 6002i devices allows remote attackers to read the documents of arbitrary users via a modified HTTP request.
How severe is CVE-2018-16656?: CVE-2018-16656 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-16656 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-16656?: CVE-2018-16656 primarily affects Kyocera Taskalfa 4002i Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-16656?: 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.
When was CVE-2018-16656 published?: CVE-2018-16656 was published on 2019-05-14 and last updated on 2026-06-17.

References

https://mars-cheng.github.io/blog/2019/CVE-2018-16656

Affected products (2)

cpe:2.3:o:kyocera:taskalfa_4002i_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:kyocera:taskalfa_6002i_firmware:-:*:*:*:*:*:*:*

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