CVE-2017-6334

CRITICALNVD 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
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 73%CVSS: 8.8Exploit: cisa kev · ssvc active · Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed: 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 PROB
73%
EPSS %ILE
99%
KEV
⚠ Exploited

Published

March 6, 2017

Last Modified

June 17, 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 / 237× 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 872 total refreshes for this CVE.

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

Frequently asked(6)

What is CVE-2017-6334?
CVE-2017-6334 is a critical 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 June 17, 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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