CVE-2017-6334

HIGHNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 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
8.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 72%CVSS: 8.8Exploit: NoneExposed: 0

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

dnslookup.cgi on NETGEAR DGN2200 devices with firmware through 10.0.0.50 allows remote authenticated users to execute arbitrary OS commands via shell metacharacters in the host_name field of an HTTP POST request, a different vulnerability than CVE-2017-6077.

CVSS v3
8.8
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
99.4%
KEV
⚠ Exploited

Published

March 6, 2017

Last Modified

April 21, 2026

Advisory Details (5)

Auto-updated May 2, 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-2017-6334
generic🟡 PoC Available

Netgear DGN2200 - 'dnslookup.cgi' Command Injection (Metasploit) - CGI remote Exploit

https://www.exploit-db.com/exploits/42257/
generic🟡 PoC Available

Netgear DGN2200v1/v2/v3/v4 - Cross-Site Request Forgery - Hardware webapps Exploit

https://www.exploit-db.com/exploits/41472/
generic🟡 PoC Available

Netgear DGN2200v1/v2/v3/v4 - 'dnslookup.cgi' Remote Command Execution - Hardware webapps Exploit

https://www.exploit-db.com/exploits/41459/
generic
http://www.securityfocus.com/bid/96463

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 57× in last 7d / 228× 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.

Showing the most recent 100 of 430 total refreshes for this CVE.

  1. 2026-07-23 14:15 UTCEPSS rescore
  2. 2026-07-23 01:30 UTCEG score recompute
  3. 2026-07-22 22:09 UTCEG score recompute
  4. 2026-07-22 20:46 UTCGHSA enrichment
  5. 2026-07-22 19:40 UTCCISA KEV update
  6. 2026-07-22 16:54 UTCEG score recompute
  7. 2026-07-22 16:54 UTCGHSA enrichment
  8. 2026-07-22 14:04 UTCEPSS rescore
  9. 2026-07-22 14:04 UTCEPSS rescore
  10. 2026-07-22 12:59 UTCGHSA enrichment
  11. 2026-07-22 09:07 UTCGHSA enrichment
  12. 2026-07-22 05:15 UTCGHSA enrichment
  13. 2026-07-22 01:02 UTCGHSA enrichment
  14. 2026-07-21 19:54 UTCGHSA enrichment
  15. 2026-07-21 16:01 UTCEG score recompute
  16. 2026-07-21 16:01 UTCGHSA enrichment
  17. 2026-07-21 15:21 UTCEPSS rescore
  18. 2026-07-21 15:21 UTCEPSS rescore
  19. 2026-07-21 14:37 UTCCISA KEV update
  20. 2026-07-21 12:06 UTCGHSA enrichment
  21. 2026-07-21 08:06 UTCGHSA enrichment
  22. 2026-07-21 04:12 UTCGHSA enrichment
  23. 2026-07-21 00:17 UTCGHSA enrichment
  24. 2026-07-20 20:22 UTCEG score recompute
  25. 2026-07-20 20:21 UTCGHSA enrichment
Show 75 more
  1. 2026-07-20 17:04 UTCEPSS rescore
  2. 2026-07-20 16:28 UTCGHSA enrichment
  3. 2026-07-20 12:36 UTCGHSA enrichment
  4. 2026-07-20 08:44 UTCGHSA enrichment
  5. 2026-07-20 04:51 UTCGHSA enrichment
  6. 2026-07-20 00:59 UTCGHSA enrichment
  7. 2026-07-19 21:06 UTCGHSA enrichment
  8. 2026-07-19 17:14 UTCGHSA enrichment
  9. 2026-07-19 13:22 UTCGHSA enrichment
  10. 2026-07-19 09:30 UTCGHSA enrichment
  11. 2026-07-19 05:37 UTCEG score recompute
  12. 2026-07-19 05:37 UTCGHSA enrichment
  13. 2026-07-19 02:26 UTCEPSS rescore
  14. 2026-07-19 02:26 UTCEPSS rescore
  15. 2026-07-19 01:45 UTCGHSA enrichment
  16. 2026-07-18 21:52 UTCGHSA enrichment
  17. 2026-07-18 17:59 UTCGHSA enrichment
  18. 2026-07-18 14:06 UTCGHSA enrichment
  19. 2026-07-18 10:12 UTCEG score recompute
  20. 2026-07-18 10:12 UTCGHSA enrichment
  21. 2026-07-18 10:00 UTCEPSS rescore
  22. 2026-07-18 06:19 UTCGHSA enrichment
  23. 2026-07-18 02:27 UTCGHSA enrichment
  24. 2026-07-17 22:35 UTCGHSA enrichment
  25. 2026-07-17 18:43 UTCGHSA enrichment
  26. 2026-07-17 14:51 UTCGHSA enrichment
  27. 2026-07-17 10:57 UTCGHSA enrichment
  28. 2026-07-17 07:05 UTCEG score recompute
  29. 2026-07-17 07:05 UTCGHSA enrichment
  30. 2026-07-17 03:13 UTCGHSA enrichment
  31. 2026-07-16 23:21 UTCGHSA enrichment
  32. 2026-07-16 19:29 UTCGHSA enrichment
  33. 2026-07-16 17:04 UTCCISA KEV update
  34. 2026-07-16 16:59 UTCEPSS rescore
  35. 2026-07-16 16:59 UTCEPSS rescore
  36. 2026-07-16 15:36 UTCGHSA enrichment
  37. 2026-07-16 11:42 UTCGHSA enrichment
  38. 2026-07-16 07:50 UTCGHSA enrichment
  39. 2026-07-16 03:58 UTCGHSA enrichment
  40. 2026-07-16 00:05 UTCGHSA enrichment
  41. 2026-07-15 20:13 UTCGHSA enrichment
  42. 2026-07-15 16:54 UTCEPSS rescore
  43. 2026-07-15 16:49 UTCCISA KEV update
  44. 2026-07-15 16:20 UTCGHSA enrichment
  45. 2026-07-15 15:04 UTCCISA KEV update
  46. 2026-07-15 12:28 UTCGHSA enrichment
  47. 2026-07-15 08:35 UTCGHSA enrichment
  48. 2026-07-15 04:42 UTCGHSA enrichment
  49. 2026-07-15 01:56 UTCEPSS rescore
  50. 2026-07-15 01:56 UTCEPSS rescore
  51. 2026-07-15 00:49 UTCGHSA enrichment
  52. 2026-07-14 20:56 UTCGHSA enrichment
  53. 2026-07-14 18:05 UTCCISA KEV update
  54. 2026-07-14 17:04 UTCGHSA enrichment
  55. 2026-07-14 13:12 UTCGHSA enrichment
  56. 2026-07-14 09:20 UTCGHSA enrichment
  57. 2026-07-14 05:26 UTCGHSA enrichment
  58. 2026-07-14 01:34 UTCGHSA enrichment
  59. 2026-07-13 21:42 UTCGHSA enrichment
  60. 2026-07-13 17:50 UTCGHSA enrichment
  61. 2026-07-13 17:07 UTCCISA KEV update
  62. 2026-07-13 13:58 UTCGHSA enrichment
  63. 2026-07-13 10:05 UTCGHSA enrichment
  64. 2026-07-13 06:03 UTCGHSA enrichment
  65. 2026-07-13 02:09 UTCGHSA enrichment
  66. 2026-07-12 22:17 UTCGHSA enrichment
  67. 2026-07-12 18:24 UTCGHSA enrichment
  68. 2026-07-12 14:30 UTCGHSA enrichment
  69. 2026-07-12 10:37 UTCGHSA enrichment
  70. 2026-07-12 06:45 UTCGHSA enrichment
  71. 2026-07-12 05:43 UTCEPSS rescore
  72. 2026-07-12 02:53 UTCGHSA enrichment
  73. 2026-07-11 23:01 UTCGHSA enrichment
  74. 2026-07-11 19:09 UTCGHSA enrichment
  75. 2026-07-11 15:16 UTCGHSA enrichment

Publicly available exploits

(4 references)

Working exploit code is in the public domain (1 Metasploit module) (3 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-42257✓ verified
    First seen Jun 26, 2017

    Netgear DGN2200 - 'dnslookup.cgi' Command Injection (Metasploit)

    Open source ↗
  • Exploit-DBEDB-41472
    First seen Feb 28, 2017

    Netgear DGN2200v1/v2/v3/v4 - Cross-Site Request Forgery

    Open source ↗
  • Exploit-DBEDB-41459✓ verified
    First seen Feb 25, 2017

    Netgear DGN2200v1/v2/v3/v4 - 'dnslookup.cgi' Remote Command Execution

    Open source ↗
  • Metasploitexploit/linux/http/netgear_dnslookup_cmd_exec✓ verified
    First seen Feb 25, 2017

    Netgear DGN2200 dnslookup.cgi Command Injection

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2017-6334?
CVE-2017-6334 is a high vulnerability published on March 6, 2017. dnslookup.cgi on NETGEAR DGN2200 devices with firmware through 10.0.0.50 allows remote authenticated users to execute arbitrary OS commands via shell metacharacters in the host_name field of an HTTP POST request, a different vulnerability than CVE-2017-6077.
When was CVE-2017-6334 disclosed?
CVE-2017-6334 was first published in the National Vulnerability Database on March 6, 2017, with the most recent update on April 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-6334 actively exploited?
Yes. CISA added CVE-2017-6334 to the Known Exploited Vulnerabilities catalog on March 25, 2022, affecting NETGEAR DGN2200 Devices. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2017-6334?
CVE-2017-6334 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2017-6334?
CVE-2017-6334 affects NETGEAR DGN2200 Devices. 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-2017-6334?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-6334, 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.

Dependency Blast Radius

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