CVE-2019-5986

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: None knownExposed: 0

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

Cross-site request forgery (CSRF) vulnerability in Hikari Denwa router/Home GateWay (Hikari Denwa router/Home GateWay provided by NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION PR-S300NE/RT-S300NE/RV-S340NE firmware version Ver. 19.41 and earlier, PR-S300HI/RT-S300HI/RV-S340HI firmware version Ver.19.01.0005 and earlier, PR-S300SE/RT-S300SE/RV-S340SE firmware version Ver.19.40 and earlier, PR-400NE/RT-400NE/RV-440NE firmware version Ver.7.42 and earlier, PR-400KI/RT-400KI/RV-440KI firmware version Ver.07.00.1010 and earlier, PR-400MI/RT-400MI/RV-440MI firmware version Ver. 07.00.1012 and earlier, PR-500KI/RT-500KI firmware version Ver.01.00.0090 and earlier, RS-500KI firmware version Ver.01.00.0070 and earlier, PR-500MI/RT-500MI firmware version Ver.01.01.0014 and earlier, and RS-500MI firmware version Ver.03.01.0019 and earlier, and Hikari Denwa router/Home GateWay provided by NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION PR-S300NE/RT-S300NE/RV-S340NE firmware version Ver. 19.41 and earlier, PR-S300HI/RT-S300HI/RV-S340HI firmware version Ver.19.01.0005 and earlier, PR-S300SE/RT-S300SE/RV-S340SE firmware version Ver.19.40 and earlier, PR-400NE/RT-400NE/RV-440NE firmware version Ver.7.42 and earlier, PR-400KI/RT-400KI/RV-440KI firmware version Ver.07.00.1010 and earlier, PR-400MI/RT-400MI/RV-440MI firmware version Ver. 07.00.1012 and earlier, PR-500KI/RT-500KI firmware version Ver.01.00.0090 and earlier, and PR-500MI/RT-500MI firmware version Ver.01.01.0011 and earlier) allow remote attackers to hijack the authentication of administrators via unspecified vectors.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: Track

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
Severity88% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
54%
KEV
Not listed

Published

September 12, 2019

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated Aug 24, 2026
No patch confirmed yet.
generic

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https://www.ntt-west.co.jp/kiki/support/flets/hgw/190626.html
generic

JVN#43172719: Multiple vulnerabilities in Hikari Denwa router/Home GateWay

http://jvn.jp/en/jp/JVN43172719/index.html

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 23× 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 145 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2019-5986?
CVE-2019-5986 is a high vulnerability published on September 12, 2019. Cross-site request forgery (CSRF) vulnerability in Hikari Denwa router/Home GateWay (Hikari Denwa router/Home GateWay provided by NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION PR-S300NE/RT-S300NE/RV-S340NE firmware version Ver. 19.41 and earlier, PR-S300HI/RT-S300HI/RV-S340HI firmware version…
When was CVE-2019-5986 disclosed?
CVE-2019-5986 was first published in the National Vulnerability Database on September 12, 2019, 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-2019-5986 actively exploited?
CVE-2019-5986 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 46.0% of all scored CVEs.
What is the CVSS score of CVE-2019-5986?
CVE-2019-5986 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2019-5986?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-5986, 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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