How severe is CVE-2016-1228?

CVE-2016-1228 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-1228 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-1228?

CVE-2016-1228 primarily affects Ntt-west Pr-400mi Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-1228?

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-2016-1228 published?

CVE-2016-1228 was published on 2016-07-03 and last updated on 2026-06-17.

CVE-2016-1228

CVE-2016-1228 is a high-severity vulnerability in Ntt-west Pr-400mi 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-352.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Ntt-west Pr-400mi Firmware
Published: 2016-07-03
Last modified: 2026-06-17

Description

Cross-site request forgery (CSRF) vulnerability on NTT EAST Hikari Denwa routers with firmware PR-400MI, RT-400MI, and RV-440MI 07.00.1006 and earlier and NTT WEST Hikari Denwa routers with firmware PR-400MI, RT-400MI, and RV-440MI 07.00.1005 and earlier allows remote attackers to hijack the authentication of arbitrary users.

Frequently asked questions

What is CVE-2016-1228?: Cross-site request forgery (CSRF) vulnerability on NTT EAST Hikari Denwa routers with firmware PR-400MI, RT-400MI, and RV-440MI 07.00.1006 and earlier and NTT WEST Hikari Denwa routers with firmware PR-400MI, RT-400MI, and RV-440MI 07.00.1005 and earlier allows remote attackers to hijack the authentication of arbitrary users.
How severe is CVE-2016-1228?: CVE-2016-1228 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-1228 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-1228?: CVE-2016-1228 primarily affects Ntt-west Pr-400mi Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-1228?: 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-2016-1228 published?: CVE-2016-1228 was published on 2016-07-03 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:o:ntt-west:pr-400mi_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:ntt-west:pr-400mi:-:*:*:*:*:*:*:*
cpe:2.3:o:ntt-west:rt-400mi_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ntt-west:rv-440mi_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ntt-east:pr-400mi_firmware:07.00.1006:*:*:*:*:*:*:*
cpe:2.3:o:ntt-east:rt-400mi_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ntt-east:rv-440mi_firmware:*:*:*:*:*:*:*:*

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