CVE-2026-16928

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-20. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

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

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to cause a denial of service due to a heap-based buffer overflow.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
25%
KEV
Not listed

Published

August 20, 2026

Last Modified

August 24, 2026

Advisory Details (1)

Auto-updated Aug 20, 2026
No patch confirmed yet.
generic

Security Bulletin: Vulnerabilities in IBM AIX and PowerVM VIOS

https://www.ibm.com/support/pages/node/7283858

Vendor Advisories for CVE-2026-16928(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 24× in last 7d / 113× 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 123 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-16928?
CVE-2026-16928 is a high vulnerability published on August 20, 2026. IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to cause a denial of service due to a heap-based buffer overflow.
When was CVE-2026-16928 disclosed?
CVE-2026-16928 was first published in the National Vulnerability Database on August 20, 2026, with the most recent update on August 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16928 actively exploited?
CVE-2026-16928 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 75.0% of all scored CVEs.
What is the CVSS score of CVE-2026-16928?
CVE-2026-16928 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-16928?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16928, 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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