HOMEVULNERABILITIESCVE-2016-1228
HIGH

CVE-2016-1228

CWE-352Published: July 3, 2016· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2016-1228 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

ntt-east6 product(s)
pr-400mi firmwarepr-400mirt-400mi firmwarert-400mirv-440mi firmwarerv-440mi
ntt-west6 product(s)
pr-400mi firmwarepr-400mirt-400mi firmwarert-400mirv-440mi firmwarerv-440mi
Source: NVD CPE · 12 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://jvn.jp/en/jp/JVN45034304/index.html
ADVISORYhttp://jvndb.jvn.jp/jvndb/JVNDB-2016-000106
ADVISORYhttp://web116.jp/ced/support/news/contents/2016/20160627.html
ADVISORYhttp://www.ntt-west.co.jp/kiki/support/flets/hgw4_mi/160627.html
ADVISORYhttp://jvn.jp/en/jp/JVN45034304/index.html
ADVISORYhttp://jvndb.jvn.jp/jvndb/JVNDB-2016-000106
ADVISORYhttp://web116.jp/ced/support/news/contents/2016/20160627.html
ADVISORYhttp://www.ntt-west.co.jp/kiki/support/flets/hgw4_mi/160627.html

All References (8)

→
http://jvn.jp/en/jp/JVN45034304/index.htmlVendor Advisory
→
http://jvndb.jvn.jp/jvndb/JVNDB-2016-000106Third Party Advisory · VDB Entry · Vendor Advisory
→
http://web116.jp/ced/support/news/contents/2016/20160627.htmlVendor Advisory
→
http://www.ntt-west.co.jp/kiki/support/flets/hgw4_mi/160627.htmlVendor Advisory
→
http://jvn.jp/en/jp/JVN45034304/index.htmlVendor Advisory
→
http://jvndb.jvn.jp/jvndb/JVNDB-2016-000106Third Party Advisory · VDB Entry · Vendor Advisory
→
http://web116.jp/ced/support/news/contents/2016/20160627.htmlVendor Advisory
→
http://www.ntt-west.co.jp/kiki/support/flets/hgw4_mi/160627.htmlVendor Advisory

Quick Facts

CVE IDCVE-2016-1228
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-352
CISA KEVNo
Affected2 vendor(s)
PublishedJul 3, 2016

Related CVEs (CWE-352)

CVE-2025-23922
10.0
CVE-2017-5145
10.0
CVE-2025-32642
10.0
CVE-2019-14551
9.8
CVE-2025-31033
9.8
CVE-2024-34502
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2016-1228 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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