Hazard

Is CVE-2011-4723 being exploited?

Confirmed exploited in the wild

CISA has evidence of active exploitation. This is not theoretical risk — someone has already used it against someone.

D-Link DIR-300 Router Cleartext Storage of a Password Vulnerability

D-Link · DIR-300 Router

CVSS 5.7 EPSS 3% no public exploit indexed Fix deadline passed 29 September 2022

What it is

The D-Link DIR-300 router stores cleartext passwords, which allows context-dependent attackers to obtain sensitive information.

Why we say that

  • CISA's federal remediation deadline (2022-09-29) has passed
  • Listed in the CISA Known Exploited Vulnerabilities catalogue

Every line above comes from a named public source. Where the evidence is thin, we say so rather than inventing confidence — see methodology.

What to do

The impacted product is end-of-life and should be disconnected if still in use.

What it costs when this goes wrong

This is where UK enforcement meets the vulnerability record. Where an unfixed vulnerability leads to a breach, the ICO treats it as a security failure under UK GDPR. Recent cases:

All UK cases caused by unpatched software →