CVE-2016-4923

HIGHNVD 6.18.0▲
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.0 under NVD CVSS v3. EPSS exploit probability: 1.0%, top 41% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
8.0EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 6.1Exploit: None knownExposed: 0

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

Insufficient cross site scripting protection in J-Web component in Juniper Networks Junos OS may potentially allow a remote unauthenticated user to inject web script or HTML and steal sensitive data and credentials from a J-Web session and to perform administrative actions on the Junos device. Juniper SIRT is not aware of any malicious exploitation of this vulnerability. Affected releases are Juniper Networks Junos OS 11.4 prior to 11.4R13-S3; 12.1X44 prior to 12.1X44-D60; 12.1X46 prior to 12.1X46-D40; 12.1X47 prior to 12.1X47-D30; 12.3 prior to 12.3R11; 12.3X48 prior to 12.3X48-D20; 13.2X51 prior to 13.2X51-D39, 13.2X51-D40; 13.3 prior to 13.3R9; 14.1 prior to 14.1R6; 14.2 prior to 14.2R6; 15.1 prior to 15.1R3; 15.1X49 prior to 15.1X49-D20; 15.1X53 prior to 15.1X53-D57.

CVSS v3
6.1
EG Score
8.0(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity80% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
61%
KEV
Not listed

Published

October 13, 2017

Last Modified

June 17, 2026

References (4)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 3× in last 7d / 18× 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 131 total refreshes for this CVE.

  1. 2026-09-07 15:56 UTCEPSS rescore
  2. 2026-09-04 13:56 UTCEPSS rescore
  3. 2026-09-02 14:07 UTCEPSS rescore
  4. 2026-09-01 03:31 UTCEPSS rescore
  5. 2026-08-30 19:12 UTCEPSS rescore
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  11. 2026-08-19 16:59 UTCEPSS rescore
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  1. 2026-07-30 16:23 UTCEPSS rescore
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  3. 2026-07-28 15:31 UTCEPSS rescore
  4. 2026-07-26 14:50 UTCEPSS rescore
  5. 2026-07-25 14:13 UTCEPSS rescore
  6. 2026-07-23 14:14 UTCEPSS rescore
  7. 2026-07-23 01:23 UTCEG score recompute
  8. 2026-07-22 22:02 UTCEG score recompute▲ 1.90
  9. 2026-07-22 14:04 UTCEPSS rescore
  10. 2026-07-21 15:21 UTCEPSS rescore
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  12. 2026-07-20 17:03 UTCEPSS rescore
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  18. 2026-07-16 16:59 UTCEPSS rescore
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  20. 2026-07-15 16:54 UTCEPSS rescore
  21. 2026-07-15 16:54 UTCEPSS rescore
  22. 2026-07-15 01:56 UTCEPSS rescore
  23. 2026-07-15 01:56 UTCEPSS rescore
  24. 2026-07-13 22:26 UTCEPSS rescore
  25. 2026-07-13 06:09 UTCEPSS rescore
  26. 2026-07-12 05:43 UTCEPSS rescore
  27. 2026-07-12 05:43 UTCEPSS rescore
  28. 2026-07-11 08:23 UTCEPSS rescore
  29. 2026-07-09 19:05 UTCEPSS rescore
  30. 2026-07-08 15:10 UTCEPSS rescore
  31. 2026-07-07 13:42 UTCEPSS rescore
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  38. 2026-07-01 15:02 UTCEPSS rescore
  39. 2026-06-30 23:19 UTCEPSS rescore
  40. 2026-06-29 14:03 UTCEPSS rescore
  41. 2026-06-28 14:04 UTCEPSS rescore
  42. 2026-06-28 04:53 UTCEPSS rescore
  43. 2026-06-27 03:05 UTCEPSS rescore
  44. 2026-06-27 03:05 UTCEPSS rescore
  45. 2026-06-25 13:47 UTCEPSS rescore
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  47. 2026-06-24 14:02 UTCEPSS rescore
  48. 2026-06-24 14:02 UTCEPSS rescore
  49. 2026-06-23 21:30 UTCEPSS rescore
  50. 2026-06-22 14:23 UTCEPSS rescore
  51. 2026-06-21 14:54 UTCEPSS rescore
  52. 2026-06-21 14:54 UTCEPSS rescore
  53. 2026-06-21 01:57 UTCEPSS rescore
  54. 2026-06-21 01:57 UTCEPSS rescore
  55. 2026-06-19 19:23 UTCEPSS rescore
  56. 2026-06-19 19:23 UTCEPSS rescore
  57. 2026-06-18 17:50 UTCEPSS rescore
  58. 2026-06-17 17:50 UTCEPSS rescore
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  60. 2026-06-16 17:50 UTCEPSS rescore
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  63. 2026-06-14 23:14 UTCEPSS rescore
  64. 2026-06-13 22:57 UTCEPSS rescore
  65. 2026-06-13 22:57 UTCEPSS rescore
  66. 2026-06-12 23:09 UTCEPSS rescore
  67. 2026-06-12 23:09 UTCEPSS rescore
  68. 2026-06-11 13:57 UTCEPSS rescore
  69. 2026-06-10 22:15 UTCEPSS rescore
  70. 2026-06-10 13:18 UTCEPSS rescore
  71. 2026-06-08 14:14 UTCEPSS rescore
  72. 2026-06-07 15:22 UTCEPSS rescore
  73. 2026-06-07 15:22 UTCEPSS rescore
  74. 2026-06-06 13:45 UTCEPSS rescore
  75. 2026-06-05 22:44 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2016-4923?
CVE-2016-4923 is a high vulnerability published on October 13, 2017. Insufficient cross site scripting protection in J-Web component in Juniper Networks Junos OS may potentially allow a remote unauthenticated user to inject web script or HTML and steal sensitive data and credentials from a J-Web session and to perform administrative actions on the Junos device.…
When was CVE-2016-4923 disclosed?
CVE-2016-4923 was first published in the National Vulnerability Database on October 13, 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-2016-4923 actively exploited?
CVE-2016-4923 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 39.3% of all scored CVEs.
What is the CVSS score of CVE-2016-4923?
CVE-2016-4923 has a CVSS v3 base score of 6.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.0.
How do I remediate CVE-2016-4923?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-4923, 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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