How severe is CVE-2011-4723?

CVE-2011-4723 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2011-4723 being actively exploited?

Yes. CVE-2011-4723 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-09-08, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2011-4723?

CVE-2011-4723 affects Dlink Dir-300 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-4723?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2011-4723 have an EU (EUVD) identifier?

Yes. CVE-2011-4723 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2011-4641. It is also flagged as exploited in the EUVD (since 2022-09-08).

When was CVE-2011-4723 published?

CVE-2011-4723 was published on 2011-12-20 and last updated on 2026-06-16.

CVE-2011-4723

CVE-2011-4723 is a medium-severity vulnerability in Dlink Dir-300 Firmware with a CVSS 3.x base score of 5.7. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-09-08). The underlying weakness is classified as CWE-312.

Key facts

Severity: Medium (CVSS 3.x base score 5.7)
CVSS v2: 6.8
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2022-09-08)
EU (EUVD) id: EUVD-2011-4641
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-09-08)
Weakness: CWE-312
Affected product: Dlink Dir-300 Firmware
Published: 2011-12-20
Last modified: 2026-06-16

Description

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

Frequently asked questions

What is CVE-2011-4723?: The D-Link DIR-300 router stores cleartext passwords, which allows context-dependent attackers to obtain sensitive information via unspecified vectors.
How severe is CVE-2011-4723?: CVE-2011-4723 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2011-4723 being actively exploited?: Yes. CVE-2011-4723 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-09-08, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2011-4723?: CVE-2011-4723 affects Dlink Dir-300 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-4723?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2011-4723 have an EU (EUVD) identifier?: Yes. CVE-2011-4723 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2011-4641. It is also flagged as exploited in the EUVD (since 2022-09-08).
When was CVE-2011-4723 published?: CVE-2011-4723 was published on 2011-12-20 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:dlink:dir-300_firmware:-:*:*:*:*:*:*:*

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