CVE-2017-14243: An authentication bypass vulnerability on UTStar WA3002G4 ADSL Broadband Modem WA3002G4-0021.01 devices allows

This week

CRITICAL 9.8REMOTEMITIGATE

CVE-2017-14243 is a critical-severity flaw (CVSS 9.8) affecting wa3002g4 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An authentication bypass vulnerability on UTStar WA3002G4 ADSL Broadband Modem WA3002G4-0021.01 devices allows attackers to directly access administrative settings and obtain cleartext credentials from HTML source, as demonstrated by info.cgi, upload.cgi, backupsettings.cgi, pppoe.cgi, resetrouter.cgi, and password.cgi.

Why this priority

Critical severity
EPSS top 3%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	14.8% (top 3%)
CISA exploited list	No
Weakness	CWE-287
Published	2017-09-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: utstar

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

Am I affected?

Timeline

2017-09-17 19:29 UTCPublished CVE record published
2026-06-17 01:05 UTCUpdated Record last modified

utstar wa3002g4 firmware MITIGATE

Affected: wa3002g4-0021.01

Fixed in: no fixed release known

Safe to downgrade to: a release before wa3002g4-0021.01

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: UTStar WA3002G4 ADSL Broadband Modem - Authentication Bypass

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-2017-14243?

wa3002g4 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-14243 being exploited?

CVE-2017-14243 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-2017-14243 affect?

CVE-2017-14243 affects wa3002g4 firmware. Severity is critical (CVSS 9.8). An authentication bypass vulnerability on UTStar WA3002G4 ADSL Broadband Modem WA3002G4-0021.01 devices allows attackers to directly access administrative settings and obtain cleartext credentials from HTML source, as demonstrated by info.c

How urgent is CVE-2017-14243?

Priority 68/100. Critical severity; EPSS top 3%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

References

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