CVE-2011-4723

MEDIUMNVD 5.79.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-09-08), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 5.7 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
5.7
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 3%CVSS: 5.7Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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

CVSS v3
5.7
EG Score
9.0(high)
EPSS
86.3%
KEV
⚠ Exploited

Published

December 20, 2011

Last Modified

April 22, 2026

Advisory Details (1)

Auto-updated May 20, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-4723

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 0× in last 7d / 0× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-07 17:16 UTCCISA KEV update
  2. 2026-07-07 16:41 UTCEG score recompute
  3. 2026-07-07 16:41 UTCGHSA enrichment
  4. 2026-07-07 12:59 UTCEG score recompute
  5. 2026-07-07 12:59 UTCGHSA enrichment
  6. 2026-07-07 09:17 UTCEG score recompute
  7. 2026-07-07 09:17 UTCGHSA enrichment
  8. 2026-07-07 05:36 UTCEG score recompute
  9. 2026-07-07 05:36 UTCGHSA enrichment
  10. 2026-07-07 01:55 UTCEG score recompute
  11. 2026-07-07 01:55 UTCGHSA enrichment
  12. 2026-07-06 22:13 UTCEG score recompute
  13. 2026-07-06 22:13 UTCGHSA enrichment
  14. 2026-07-06 18:29 UTCEG score recompute
  15. 2026-07-06 18:29 UTCGHSA enrichment
  16. 2026-07-06 16:23 UTCEPSS rescore
  17. 2026-07-06 14:46 UTCEG score recompute
  18. 2026-07-06 14:46 UTCGHSA enrichment
  19. 2026-07-06 11:06 UTCEG score recompute
  20. 2026-07-06 11:06 UTCGHSA enrichment
  21. 2026-07-06 07:23 UTCEG score recompute
  22. 2026-07-06 07:23 UTCGHSA enrichment
  23. 2026-07-06 03:41 UTCEG score recompute
  24. 2026-07-06 03:41 UTCGHSA enrichment
  25. 2026-07-06 02:19 UTCEPSS rescore
Show 75 more
  1. 2026-07-06 02:19 UTCEPSS rescore
  2. 2026-07-06 00:00 UTCEG score recompute
  3. 2026-07-06 00:00 UTCGHSA enrichment
  4. 2026-07-05 20:18 UTCEG score recompute
  5. 2026-07-05 20:18 UTCGHSA enrichment
  6. 2026-07-05 16:37 UTCEG score recompute
  7. 2026-07-05 16:37 UTCGHSA enrichment
  8. 2026-07-05 12:56 UTCEG score recompute
  9. 2026-07-05 12:55 UTCGHSA enrichment
  10. 2026-07-05 09:14 UTCEG score recompute
  11. 2026-07-05 09:13 UTCGHSA enrichment
  12. 2026-07-05 05:32 UTCEG score recompute
  13. 2026-07-05 05:32 UTCGHSA enrichment
  14. 2026-07-05 02:26 UTCEPSS rescore
  15. 2026-07-05 01:51 UTCEG score recompute
  16. 2026-07-05 01:51 UTCGHSA enrichment
  17. 2026-07-04 22:09 UTCEG score recompute
  18. 2026-07-04 22:09 UTCGHSA enrichment
  19. 2026-07-04 18:28 UTCEG score recompute
  20. 2026-07-04 18:28 UTCGHSA enrichment
  21. 2026-07-04 14:47 UTCEG score recompute
  22. 2026-07-04 14:47 UTCGHSA enrichment
  23. 2026-07-04 11:06 UTCEG score recompute
  24. 2026-07-04 11:06 UTCGHSA enrichment
  25. 2026-07-04 07:25 UTCEG score recompute
  26. 2026-07-04 07:25 UTCGHSA enrichment
  27. 2026-07-04 06:27 UTCEPSS rescore
  28. 2026-07-04 03:39 UTCEG score recompute
  29. 2026-07-04 03:38 UTCGHSA enrichment
  30. 2026-07-03 23:54 UTCEG score recompute
  31. 2026-07-03 23:54 UTCGHSA enrichment
  32. 2026-07-03 20:13 UTCEG score recompute
  33. 2026-07-03 20:13 UTCGHSA enrichment
  34. 2026-07-03 16:33 UTCEG score recompute
  35. 2026-07-03 16:32 UTCGHSA enrichment
  36. 2026-07-03 12:51 UTCEG score recompute
  37. 2026-07-03 12:51 UTCGHSA enrichment
  38. 2026-07-03 09:10 UTCEG score recompute
  39. 2026-07-03 09:09 UTCGHSA enrichment
  40. 2026-07-03 05:28 UTCEG score recompute
  41. 2026-07-03 05:28 UTCGHSA enrichment
  42. 2026-07-03 01:44 UTCEG score recompute
  43. 2026-07-03 01:44 UTCGHSA enrichment
  44. 2026-07-02 22:02 UTCEG score recompute
  45. 2026-07-02 22:02 UTCGHSA enrichment
  46. 2026-07-02 18:20 UTCEG score recompute
  47. 2026-07-02 18:20 UTCGHSA enrichment
  48. 2026-07-02 14:39 UTCEG score recompute
  49. 2026-07-02 14:39 UTCGHSA enrichment
  50. 2026-07-02 14:01 UTCEPSS rescore
  51. 2026-07-02 10:59 UTCEG score recompute
  52. 2026-07-02 10:59 UTCGHSA enrichment
  53. 2026-07-02 07:17 UTCEG score recompute
  54. 2026-07-02 07:17 UTCGHSA enrichment
  55. 2026-07-02 03:35 UTCEG score recompute
  56. 2026-07-02 03:35 UTCGHSA enrichment
  57. 2026-07-01 23:54 UTCEG score recompute
  58. 2026-07-01 23:54 UTCGHSA enrichment
  59. 2026-07-01 20:13 UTCEG score recompute
  60. 2026-07-01 20:13 UTCGHSA enrichment
  61. 2026-07-01 19:16 UTCCISA KEV update
  62. 2026-07-01 16:30 UTCEG score recompute
  63. 2026-07-01 16:30 UTCGHSA enrichment
  64. 2026-07-01 15:02 UTCEPSS rescore
  65. 2026-07-01 12:49 UTCEG score recompute
  66. 2026-07-01 12:48 UTCGHSA enrichment
  67. 2026-07-01 09:07 UTCEG score recompute
  68. 2026-07-01 09:06 UTCGHSA enrichment
  69. 2026-07-01 05:25 UTCEG score recompute
  70. 2026-07-01 05:25 UTCGHSA enrichment
  71. 2026-07-01 01:44 UTCEG score recompute
  72. 2026-07-01 01:44 UTCGHSA enrichment
  73. 2026-06-30 23:19 UTCEPSS rescore
  74. 2026-06-30 23:19 UTCEPSS rescore
  75. 2026-06-30 22:03 UTCEG score recompute

Frequently asked(6)

What is CVE-2011-4723?
CVE-2011-4723 is a medium vulnerability published on December 20, 2011. The D-Link DIR-300 router stores cleartext passwords, which allows context-dependent attackers to obtain sensitive information via unspecified vectors.
When was CVE-2011-4723 disclosed?
CVE-2011-4723 was first published in the National Vulnerability Database on December 20, 2011, with the most recent update on April 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2011-4723 actively exploited?
Yes. CISA added CVE-2011-4723 to the Known Exploited Vulnerabilities catalog on September 8, 2022, affecting D-Link DIR-300 Router. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2011-4723?
CVE-2011-4723 has a CVSS v3 base score of 5.7 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2011-4723?
CVE-2011-4723 affects D-Link DIR-300 Router. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2011-4723?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-4723, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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