CVE-2017-11647: NetComm Wireless 4GT101W routers with Hardware: 0.01 / Software: V1.1.8.8 / Bootloader: 1.1.3 are vulnerable t

Routine

MEDIUM 5.4DOWNGRADEMITIGATE

CVE-2017-11647 is a medium-severity flaw (CVSS 5.4) affecting 4gt101w software, 4gt101w bootloader. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

NetComm Wireless 4GT101W routers with Hardware: 0.01 / Software: V1.1.8.8 / Bootloader: 1.1.3 are vulnerable to stored cross-site scripting attacks. Creating an SSID with an XSS payload results in successful exploitation.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.5% (top 56%)
CISA exploited list	No
Weakness	CWE-79
Published	2017-07-28
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: netcomm

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

Am I affected?

Timeline

2017-07-28 05:29 UTCPublished CVE record published
2026-06-17 01:02 UTCUpdated Record last modified

netcomm 4gt101w software DOWNGRADE

Affected: 1.1.8.8

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1.8.8

1. Check installed version

apt-cache policy 4gt101w-software || rpm -q 4gt101w-software || 4gt101w-software --version

2. No fixed release: DOWNGRADE to a release before 1.1.8.8 (Debian / Ubuntu)

apt-cache madison 4gt101w-software sudo apt install 4gt101w-software=<VERSION_BEFORE_1.1.8.8> sudo apt-mark hold 4gt101w-software

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

dnf --showduplicates list 4gt101w-software sudo dnf downgrade 4gt101w-software-<VERSION_BEFORE_1.1.8.8> sudo dnf versionlock add 4gt101w-software

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.

netcomm 4gt101w bootloader MITIGATE

Affected: 1.1.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1.3

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2017-11647?

4gt101w software: downgrade or apply the listed mitigation; 4gt101w bootloader: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-11647 being exploited?

CVE-2017-11647 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-2017-11647 affect?

CVE-2017-11647 affects 4gt101w software, 4gt101w bootloader. Severity is medium (CVSS 5.4). NetComm Wireless 4GT101W routers with Hardware: 0.01 / Software: V1.1.8.8 / Bootloader: 1.1.3 are vulnerable to stored cross-site scripting attacks. Creating an SSID with an XSS payload results in successful exploitation.

How urgent is CVE-2017-11647?

Priority 35/100. Public exploit reference

Related CVEs

CVE-2017-11646 HIGH 8.8 DOWNGRADE MITIGATE NetComm Wireless 4GT101W routers with Hardware: 0.01 / Software: V1.1.8.8 / Bootloader: 1.1.3 are vulnerable t
CVE-2017-11645 CRITICAL 9.8 DOWNGRADE MITIGATE NetComm Wireless 4GT101W routers with Hardware: 0.01 / Software: V1.1.8.8 / Bootloader: 1.1.3 do not require a

References

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