CVE-2017-18777

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.8 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 79% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

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

Certain NETGEAR devices are affected by administrative password disclosure. This affects D6220 before V1.0.0.28, D6400 before V1.0.0.60, D8500 before V1.0.3.29, DGN2200v4 before 1.0.0.82, DGN2200Bv4 before 1.0.0.82, R6300v2 before 1.0.4.8, R6400 before 1.0.1.20, R6700 before 1.0.1.20, R6900 before 1.0.1.20, R7000 before 1.0.7.10, R7100LG before V1.0.0.32, R7300DST before 1.0.0.52, R7900 before 1.0.1.16, R8000 before 1.0.3.36, R8300 before 1.0.2.94, R8500 before 1.0.2.94, WNDR3400v3 before 1.0.1.12, and WNR3500Lv2 before 1.2.0.40.

CVSS v3
7.8
EG Score
7.8(medium)
EPSS
20.6%
KEV
Not listed

Published

April 22, 2020

Last Modified

November 21, 2024

References (2)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 39× 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. 2026-07-22 22:08 UTCEG score recompute
  2. 2026-07-22 14:04 UTCEPSS rescore
  3. 2026-07-22 14:04 UTCEPSS rescore
  4. 2026-07-21 15:21 UTCEPSS rescore
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  1. 2026-07-04 06:28 UTCEPSS rescore
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  4. 2026-06-30 23:19 UTCEPSS rescore
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  28. 2026-06-14 23:14 UTCEPSS rescore
  29. 2026-06-13 22:57 UTCEPSS rescore
  30. 2026-06-12 23:09 UTCEPSS rescore
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  32. 2026-06-10 13:19 UTCEPSS rescore
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  35. 2026-06-07 15:22 UTCEPSS rescore
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  37. 2026-06-06 13:45 UTCEPSS rescore
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  39. 2026-06-05 22:44 UTCEPSS rescore
  40. 2026-06-05 06:08 UTCEPSS rescore
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  42. 2026-06-04 13:10 UTCEPSS rescore
  43. 2026-06-02 20:11 UTCEPSS rescore
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  45. 2026-06-01 13:49 UTCEPSS rescore
  46. 2026-05-31 22:28 UTCEPSS rescore
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  48. 2026-05-31 00:14 UTCEPSS rescore
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  50. 2026-05-29 13:41 UTCEPSS rescore
  51. 2026-05-28 13:42 UTCEPSS rescore
  52. 2026-05-28 13:42 UTCEPSS rescore
  53. 2026-05-27 13:38 UTCEPSS rescore
  54. 2026-05-27 13:38 UTCEPSS rescore
  55. 2026-05-27 04:28 UTCEG score recompute
  56. 2026-05-27 04:28 UTCGHSA enrichment
  57. 2026-05-26 13:42 UTCEPSS rescore
  58. 2026-05-26 13:42 UTCEPSS rescore
  59. 2026-05-26 07:17 UTCEPSS rescore
  60. 2026-05-26 07:17 UTCEPSS rescore
  61. 2026-05-25 11:16 UTCOSV refresh

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2017-18777?
CVE-2017-18777 is a high vulnerability published on April 22, 2020. Certain NETGEAR devices are affected by administrative password disclosure. This affects D6220 before V1.0.0.28, D6400 before V1.0.0.60, D8500 before V1.0.3.29, DGN2200v4 before 1.0.0.82, DGN2200Bv4 before 1.0.0.82, R6300v2 before 1.0.4.8, R6400 before 1.0.1.20, R6700 before 1.0.1.20, R6900 before…
When was CVE-2017-18777 disclosed?
CVE-2017-18777 was first published in the National Vulnerability Database on April 22, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-18777 actively exploited?
CVE-2017-18777 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-18777?
CVE-2017-18777 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2017-18777?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-18777, 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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