Is CVE-2011-4723 being actively exploited?

Yes. CVE-2011-4723 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added on September 8, 2022.

What is the CVSS score for CVE-2011-4723?

CVE-2011-4723 has a CVSS 3.1 base score of 5.7 (MEDIUM).

CVE-2011-4723

MEDIUM · CVSS 5.7CISA KEV: actively exploitedEPSS 3.1%EU EUVD: exploited

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

Key facts

CVSS score: 5.7 (v3.1)
Severity: MEDIUM
CVSS vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-312
EPSS score: 3.1% (88th percentile)
In CISA KEV: Yes, added September 8, 2022
In EU EUVD: Yes (EUVD-2011-4641)
Published: December 20, 2011
NVD last modified: June 16, 2026
Status: Analyzed

CISA Known Exploited Vulnerability

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

Added to the KEV catalog on September 8, 2022; federal remediation due September 29, 2022.

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-4641 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 22, 2025.

View on the EU Vulnerability Database

Affected products

dlink / dir-300
dlink / dir-300 firmware

References

http://en.securitylab.ru/lab/PT-2011-30(Broken Link)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-4723(US Government Resource)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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