CVE-2026-16896

HIGHNVD 4.77.1▲
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-13. NVD baseline CVSS 4.7; sources differ by 2.4.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.7Exploit: None knownExposed: 0

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

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to obtain unauthorized access to files due to a time-of-check time-of-use (TOCTOU) race condition.

CVSS v3
4.7
EG Score
7.1(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
0%
KEV
Not listed

Published

August 13, 2026

Last Modified

August 17, 2026

Advisory Details (1)

Auto-updated Aug 13, 2026
No patch confirmed yet.
generic

Security Bulletin: IBM i is Affected By Multiple Vulnerabilities in Network Authentication Service

https://www.ibm.com/support/pages/node/7283293

Vendor Advisories for CVE-2026-16896(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 18× in last 7d / 70× 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 103 total refreshes for this CVE.

  1. 2026-09-19 17:07 UTCGHSA enrichment
  2. 2026-09-19 04:10 UTCEG score recompute
  3. 2026-09-19 04:10 UTCGHSA enrichment
  4. 2026-09-18 19:27 UTCEPSS rescore
  5. 2026-09-18 15:12 UTCGHSA enrichment
  6. 2026-09-18 02:15 UTCEG score recompute
  7. 2026-09-18 02:15 UTCGHSA enrichment
  8. 2026-09-17 13:18 UTCGHSA enrichment
  9. 2026-09-16 23:56 UTCEG score recompute
  10. 2026-09-16 23:56 UTCGHSA enrichment
  11. 2026-09-16 14:07 UTCEPSS rescore
  12. 2026-09-16 05:37 UTCGHSA enrichment
  13. 2026-09-15 16:41 UTCGHSA enrichment
  14. 2026-09-15 03:35 UTCGHSA enrichment
  15. 2026-09-14 14:37 UTCGHSA enrichment
  16. 2026-09-14 01:35 UTCGHSA enrichment
  17. 2026-09-13 12:38 UTCGHSA enrichment
  18. 2026-09-12 23:39 UTCGHSA enrichment
  19. 2026-09-12 10:42 UTCGHSA enrichment
  20. 2026-09-11 21:39 UTCEG score recompute
  21. 2026-09-11 21:39 UTCGHSA enrichment
  22. 2026-09-11 14:52 UTCEPSS rescore
  23. 2026-09-11 08:42 UTCGHSA enrichment
  24. 2026-09-10 19:45 UTCEG score recompute
  25. 2026-09-10 19:45 UTCGHSA enrichment
Show 75 more
  1. 2026-09-10 09:34 UTCEPSS rescore
  2. 2026-09-10 06:47 UTCGHSA enrichment
  3. 2026-09-09 17:50 UTCGHSA enrichment
  4. 2026-09-09 04:53 UTCGHSA enrichment
  5. 2026-09-08 06:16 UTCGHSA enrichment
  6. 2026-09-07 16:29 UTCGHSA enrichment
  7. 2026-09-06 18:21 UTCGHSA enrichment
  8. 2026-09-06 05:24 UTCGHSA enrichment
  9. 2026-09-05 16:27 UTCEG score recompute
  10. 2026-09-05 16:27 UTCGHSA enrichment
  11. 2026-09-05 03:28 UTCGHSA enrichment
  12. 2026-09-04 14:30 UTCEG score recompute
  13. 2026-09-04 14:30 UTCGHSA enrichment
  14. 2026-09-04 05:06 UTCEPSS rescore
  15. 2026-09-04 01:33 UTCGHSA enrichment
  16. 2026-09-03 12:34 UTCGHSA enrichment
  17. 2026-09-02 23:00 UTCGHSA enrichment
  18. 2026-09-02 04:23 UTCGHSA enrichment
  19. 2026-09-01 15:11 UTCGHSA enrichment
  20. 2026-09-01 00:38 UTCGHSA enrichment
  21. 2026-08-31 11:38 UTCGHSA enrichment
  22. 2026-08-30 22:25 UTCGHSA enrichment
  23. 2026-08-30 09:28 UTCGHSA enrichment
  24. 2026-08-29 20:23 UTCGHSA enrichment
  25. 2026-08-29 07:12 UTCGHSA enrichment
  26. 2026-08-28 13:09 UTCGHSA enrichment
  27. 2026-08-27 23:51 UTCGHSA enrichment
  28. 2026-08-27 10:54 UTCGHSA enrichment
  29. 2026-08-26 21:56 UTCGHSA enrichment
  30. 2026-08-26 08:55 UTCGHSA enrichment
  31. 2026-08-25 19:57 UTCEG score recompute
  32. 2026-08-25 19:57 UTCGHSA enrichment
  33. 2026-08-25 13:48 UTCEPSS rescore
  34. 2026-08-25 07:01 UTCGHSA enrichment
  35. 2026-08-24 18:04 UTCEG score recompute
  36. 2026-08-24 18:04 UTCGHSA enrichment
  37. 2026-08-24 05:07 UTCGHSA enrichment
  38. 2026-08-23 16:09 UTCGHSA enrichment
  39. 2026-08-23 03:10 UTCEG score recompute
  40. 2026-08-23 03:10 UTCGHSA enrichment
  41. 2026-08-23 00:19 UTCEPSS rescore
  42. 2026-08-22 14:13 UTCGHSA enrichment
  43. 2026-08-22 01:13 UTCGHSA enrichment
  44. 2026-08-21 12:16 UTCGHSA enrichment
  45. 2026-08-20 23:17 UTCGHSA enrichment
  46. 2026-08-20 10:20 UTCGHSA enrichment
  47. 2026-08-19 21:23 UTCEG score recompute
  48. 2026-08-19 21:23 UTCGHSA enrichment
  49. 2026-08-19 17:03 UTCEPSS rescore
  50. 2026-08-19 08:23 UTCGHSA enrichment
  51. 2026-08-18 19:26 UTCEG score recompute
  52. 2026-08-18 19:26 UTCGHSA enrichment
  53. 2026-08-18 13:48 UTCEPSS rescore
  54. 2026-08-18 06:26 UTCGHSA enrichment
  55. 2026-08-17 17:28 UTCEG score recompute
  56. 2026-08-17 17:28 UTCGHSA enrichment
  57. 2026-08-17 17:24 UTCNVD updateCVSS v3 → 4.7 · severity → MEDIUM
  58. 2026-08-17 13:47 UTCEPSS rescore
  59. 2026-08-17 12:22 UTCGHSA enrichment
  60. 2026-08-16 23:24 UTCEG score recompute
  61. 2026-08-16 23:24 UTCGHSA enrichment
  62. 2026-08-16 14:56 UTCEPSS rescore
  63. 2026-08-16 10:26 UTCEG score recompute
  64. 2026-08-16 10:26 UTCGHSA enrichment
  65. 2026-08-16 02:14 UTCEPSS rescore
  66. 2026-08-15 21:30 UTCGHSA enrichment
  67. 2026-08-15 08:33 UTCEG score recompute
  68. 2026-08-15 08:33 UTCGHSA enrichment
  69. 2026-08-15 01:30 UTCEPSS rescore
  70. 2026-08-14 19:36 UTCEG score recompute
  71. 2026-08-14 19:36 UTCGHSA enrichment
  72. 2026-08-14 18:34 UTCEG score recompute
  73. 2026-08-14 18:34 UTCGHSA enrichment
  74. 2026-08-14 09:38 UTCEG score recompute
  75. 2026-08-14 09:38 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-16896?
CVE-2026-16896 is a high vulnerability published on August 13, 2026. IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to obtain unauthorized access to files due to a time-of-check time-of-use (TOCTOU) race condition.
When was CVE-2026-16896 disclosed?
CVE-2026-16896 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16896 actively exploited?
CVE-2026-16896 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 99.9% of all scored CVEs.
What is the CVSS score of CVE-2026-16896?
CVE-2026-16896 has a CVSS v3 base score of 4.7 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.1.
How do I remediate CVE-2026-16896?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16896, 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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