CVE-2026-16892

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreHIGH confidence

Score 5.4 from GitHub Security Advisory published 2026-09-04. A secondary CVSS source baseline 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 5.4Exploit: None knownExposed services: Not assessed

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

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to bypass security restrictions due to improper authentication during service-name matching.

CVSS v3
5.4
EG Score
5.4MEDIUMhigh confidence
EG Risk
24
EG Risk 24/100CISA SSVC

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
Severity54% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.3%
EPSS %ILE
15th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 4, 2026

Last Modified

September 8, 2026

Advisory Details (1)

Auto-updated Sep 4, 2026
No patch confirmed yet.
generic

Security Bulletin: IBM i is Affected By An Improper Authentication Vulnerability in Network Authentication Service [CVE-2026-16892]

https://www.ibm.com/support/pages/node/7285843

Vendor Advisories for CVE-2026-16892(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 19× in last 7d / 85× 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. 2026-10-03 19:21 UTCEG score recompute
  2. 2026-10-03 19:21 UTCGHSA enrichment
  3. 2026-10-03 14:25 UTCEPSS rescore
  4. 2026-10-02 21:15 UTCEG score recompute
  5. 2026-10-02 21:15 UTCGHSA enrichment
  6. 2026-10-01 23:00 UTCEG score recompute
  7. 2026-10-01 22:59 UTCGHSA enrichment
  8. 2026-10-01 19:49 UTCEPSS rescore
  9. 2026-10-01 00:53 UTCEG score recompute
  10. 2026-10-01 00:53 UTCGHSA enrichment
  11. 2026-09-30 15:02 UTCEPSS rescore
  12. 2026-09-30 02:41 UTCEG score recompute
  13. 2026-09-30 02:41 UTCGHSA enrichment
  14. 2026-09-29 15:20 UTCEPSS rescore
  15. 2026-09-29 01:29 UTCEG score recompute
  16. 2026-09-29 01:29 UTCGHSA enrichment
  17. 2026-09-28 13:51 UTCEPSS rescore
  18. 2026-09-28 03:23 UTCEG score recompute
  19. 2026-09-28 03:23 UTCGHSA enrichment
  20. 2026-09-27 13:47 UTCEPSS rescore
  21. 2026-09-27 05:17 UTCEG score recompute
  22. 2026-09-27 05:17 UTCGHSA enrichment
  23. 2026-09-26 15:58 UTCEPSS rescore
  24. 2026-09-26 07:06 UTCEG score recompute
  25. 2026-09-26 07:06 UTCGHSA enrichment
Show 60 more
  1. 2026-09-25 09:00 UTCEG score recompute
  2. 2026-09-25 09:00 UTCGHSA enrichment
  3. 2026-09-24 10:54 UTCEG score recompute
  4. 2026-09-24 10:54 UTCGHSA enrichment
  5. 2026-09-23 12:47 UTCEG score recompute
  6. 2026-09-23 12:47 UTCGHSA enrichment
  7. 2026-09-22 14:41 UTCEG score recompute
  8. 2026-09-22 14:41 UTCGHSA enrichment
  9. 2026-09-21 16:20 UTCEG score recompute
  10. 2026-09-21 16:20 UTCGHSA enrichment
  11. 2026-09-20 18:14 UTCGHSA enrichment
  12. 2026-09-19 20:08 UTCEG score recompute
  13. 2026-09-19 20:08 UTCGHSA enrichment
  14. 2026-09-18 22:02 UTCEG score recompute
  15. 2026-09-18 22:02 UTCGHSA enrichment
  16. 2026-09-18 19:27 UTCEPSS rescore
  17. 2026-09-17 23:56 UTCEG score recompute
  18. 2026-09-17 23:56 UTCGHSA enrichment
  19. 2026-09-17 01:47 UTCEG score recompute
  20. 2026-09-17 01:47 UTCGHSA enrichment
  21. 2026-09-16 14:07 UTCEPSS rescore
  22. 2026-09-16 05:14 UTCEPSS rescore
  23. 2026-09-16 03:41 UTCGHSA enrichment
  24. 2026-09-15 05:35 UTCEG score recompute
  25. 2026-09-15 05:35 UTCGHSA enrichment
  26. 2026-09-14 07:16 UTCEG score recompute
  27. 2026-09-14 07:16 UTCGHSA enrichment
  28. 2026-09-13 16:46 UTCEPSS rescore
  29. 2026-09-13 09:10 UTCEG score recompute
  30. 2026-09-13 09:10 UTCGHSA enrichment
  31. 2026-09-12 15:00 UTCEPSS rescore
  32. 2026-09-12 11:05 UTCEG score recompute
  33. 2026-09-12 11:05 UTCGHSA enrichment
  34. 2026-09-11 14:52 UTCEPSS rescore
  35. 2026-09-11 12:48 UTCEG score recompute
  36. 2026-09-11 12:47 UTCGHSA enrichment
  37. 2026-09-11 09:36 UTCEPSS rescore
  38. 2026-09-10 14:33 UTCEG score recompute
  39. 2026-09-10 14:33 UTCGHSA enrichment
  40. 2026-09-10 09:34 UTCEPSS rescore
  41. 2026-09-09 16:27 UTCEG score recompute
  42. 2026-09-09 16:26 UTCGHSA enrichment
  43. 2026-09-08 22:00 UTCEPSS rescore
  44. 2026-09-08 18:16 UTCGHSA enrichment
  45. 2026-09-08 15:13 UTCGHSA enrichment
  46. 2026-09-08 12:47 UTCEG score recompute
  47. 2026-09-08 12:47 UTCGHSA enrichment
  48. 2026-09-07 16:01 UTCEPSS rescore
  49. 2026-09-07 14:36 UTCGHSA enrichment
  50. 2026-09-06 14:51 UTCEG score recompute
  51. 2026-09-06 14:51 UTCGHSA enrichment
  52. 2026-09-06 13:47 UTCEPSS rescore
  53. 2026-09-05 16:45 UTCEG score recompute
  54. 2026-09-05 16:45 UTCGHSA enrichment
  55. 2026-09-04 18:39 UTCEG score recompute
  56. 2026-09-04 18:39 UTCGHSA enrichment
  57. 2026-09-04 17:45 UTCEG score recompute
  58. 2026-09-04 17:26 UTCEG score recompute
  59. 2026-09-04 16:44 UTCEG score recompute
  60. 2026-09-04 16:44 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-16892?
CVE-2026-16892 is a medium vulnerability published on September 4, 2026. IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to bypass security restrictions due to improper authentication during service-name matching.
When was CVE-2026-16892 disclosed?
CVE-2026-16892 was first published on September 4, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16892 actively exploited?
CVE-2026-16892 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (15th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-16892?
CVE-2026-16892 has a CVSS base score of 5.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-16892?
No fix for CVE-2026-16892 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-16892 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-16892

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