Vulnerability Monitor

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CVE-2016-1227

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 allow remote authenticated users to execute arbitrary OS commands via unspecified vectors.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.2, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 12 products from ntt-east, from ntt-east, from ntt-west and 9 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2016, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2016-07-03T14:59:01.570

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 7.2 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: SINGLE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

8.0

Impact Score

6.4

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	ntt-east	rt-400mi_firmware	≤ 07.00.1006	Yes
Hardware	ntt-east	rt-400mi	-	No
Operating System	ntt-west	pr-400mi_firmware	≤ 07.00.1005	Yes
Hardware	ntt-west	pr-400mi	-	No
Hardware	ntt-west	rt-400mi	-	No
Operating System	ntt-west	rt-400mi_firmware	≤ 07.00.1005	Yes
Operating System	ntt-west	rv-440mi_firmware	≤ 07.00.1005	Yes
Hardware	ntt-west	rv-440mi	-	No
Operating System	ntt-east	pr-400mi_firmware	≤ 07.00.1006	Yes
Hardware	ntt-east	pr-400mi	-	No
Operating System	ntt-east	rv-440mi_firmware	≤ 07.00.1006	Yes
Hardware	ntt-east	rv-440mi	-	No

References

http://jvn.jp/en/jp/JVN77403442/index.html Vendor Advisory ([email protected])
http://jvndb.jvn.jp/jvndb/JVNDB-2016-000105 Third Party Advisory, VDB Entry, Vendor Advisory ([email protected])
http://web116.jp/ced/support/news/contents/2016/20160627.html Vendor Advisory ([email protected])
http://www.ntt-west.co.jp/kiki/support/flets/hgw4_mi/160627.html Vendor Advisory ([email protected])
http://jvn.jp/en/jp/JVN77403442/index.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://jvndb.jvn.jp/jvndb/JVNDB-2016-000105 Third Party Advisory, VDB Entry, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://web116.jp/ced/support/news/contents/2016/20160627.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.ntt-west.co.jp/kiki/support/flets/hgw4_mi/160627.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For ntt-east's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.