CVE-2016-4811: The NTT Broadband Platform Japan Connected-free Wi-Fi application 1.15.1 and earlier for Android and 1.13.0 an

Routine

MEDIUM 5.6REMOTEDOWNGRADEDOWNGRADE

CVE-2016-4811 is a medium-severity flaw (CVSS 5.6) affecting japan connected-free wi-fi, japan connected-free wi-fi. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The NTT Broadband Platform Japan Connected-free Wi-Fi application 1.15.1 and earlier for Android and 1.13.0 and earlier for iOS allows man-in-the-middle attackers to obtain API access via unspecified vectors.

Why this priority

Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.6 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-284
Published	2016-06-19
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: ntt-bp

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2016-06-19 20:59 UTCPublished CVE record published
2026-06-17 00:48 UTCUpdated Record last modified

ntt-bp japan connected-free wi-fi DOWNGRADE

Affected: 1.13.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.13.0

1. Check installed version

apt-cache policy japan-connected-free-wi-fi || rpm -q japan-connected-free-wi-fi || japan-connected-free-wi-fi --version

2. No fixed release: DOWNGRADE to a release before 1.13.0 (Debian / Ubuntu)

apt-cache madison japan-connected-free-wi-fi sudo apt install japan-connected-free-wi-fi=<VERSION_BEFORE_1.13.0> sudo apt-mark hold japan-connected-free-wi-fi

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list japan-connected-free-wi-fi sudo dnf downgrade japan-connected-free-wi-fi-<VERSION_BEFORE_1.13.0> sudo dnf versionlock add japan-connected-free-wi-fi

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

ntt-bp japan connected-free wi-fi DOWNGRADE

Affected: 1.15.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.15.1

1. Check installed version

apt-cache policy japan-connected-free-wi-fi || rpm -q japan-connected-free-wi-fi || japan-connected-free-wi-fi --version

2. No fixed release: DOWNGRADE to a release before 1.15.1 (Debian / Ubuntu)

apt-cache madison japan-connected-free-wi-fi sudo apt install japan-connected-free-wi-fi=<VERSION_BEFORE_1.15.1> sudo apt-mark hold japan-connected-free-wi-fi

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list japan-connected-free-wi-fi sudo dnf downgrade japan-connected-free-wi-fi-<VERSION_BEFORE_1.15.1> sudo dnf versionlock add japan-connected-free-wi-fi

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2016-4811?

japan connected-free wi-fi: downgrade or apply the listed mitigation; japan connected-free wi-fi: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2016-4811 being exploited?

CVE-2016-4811 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2016-4811 affect?

CVE-2016-4811 affects japan connected-free wi-fi, japan connected-free wi-fi. Severity is medium (CVSS 5.6). The NTT Broadband Platform Japan Connected-free Wi-Fi application 1.15.1 and earlier for Android and 1.13.0 and earlier for iOS allows man-in-the-middle attackers to obtain API access via unspecified vectors.

How urgent is CVE-2016-4811?

Priority 39/100. Remotely exploitable, no login, no user action

Software pages

Android vulnerabilities · iOS vulnerabilities · Wi-Fi vulnerabilities

Related CVEs

CVE-2015-5630 MEDIUM 4.3 UPGRADE UPGRADE Cross-site scripting (XSS) vulnerability in the NTT Broadband Platform Japan Connected-free Wi-Fi application
CVE-2015-5629 MEDIUM 6.8 UPGRADE UPGRADE The NTT Broadband Platform Japan Connected-free Wi-Fi application 1.6.0 and earlier for Android and 1.0.2 and

References

← Back to latest CVEs