CVE-2017-13713: T&W WIFI Repeater BE126 allows remote authenticated users to execute arbitrary code via shell metacharacters i

This week

HIGH 8.8MITIGATE

CVE-2017-13713 is a high-severity flaw (CVSS 8.8) affecting wifi repeater firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

T&W WIFI Repeater BE126 allows remote authenticated users to execute arbitrary code via shell metacharacters in the user parameter to cgi-bin/webupg.

Why this priority

High severity
EPSS top 5%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	9.1% (top 5%)
CISA exploited list	No
Weakness	CWE-78
Published	2017-09-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: twsz

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

Am I affected?

Timeline

2017-09-07 13:29 UTCPublished CVE record published
2026-06-17 01:05 UTCUpdated Record last modified

twsz wifi repeater firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Wireless Repeater BE126 - Remote Code Execution

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-2017-13713?

wifi repeater firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-13713 being exploited?

CVE-2017-13713 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-2017-13713 affect?

CVE-2017-13713 affects wifi repeater firmware. Severity is high (CVSS 8.8). T&W WIFI Repeater BE126 allows remote authenticated users to execute arbitrary code via shell metacharacters in the user parameter to cgi-bin/webupg.

How urgent is CVE-2017-13713?

Priority 60/100. High severity; EPSS top 5%: very likely to be exploited; Public exploit reference

Software pages

Wi-Fi vulnerabilities

Related CVEs

CVE-2017-8772 CRITICAL 9.8 MITIGATE On BE126 WIFI repeater 1.0 devices, an attacker can log into telnet (which is open by default) with default cr
CVE-2017-8771 CRITICAL 9.8 MITIGATE On BE126 WIFI repeater 1.0 devices, an attacker can log into telnet (which is open by default) with default cr
CVE-2017-8770 HIGH 7.5 MITIGATE There is LFD (local file disclosure) on BE126 WIFI repeater 1.0 devices that allows attackers to read the enti

References

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