CVE-2026-17163

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-21. 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 improper validation of an array size field.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

August 20, 2026

Last Modified

August 25, 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-2026-17163(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 21× in last 7d / 106× 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 115 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-17163?
CVE-2026-17163 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 improper validation of an array size field.
When was CVE-2026-17163 disclosed?
CVE-2026-17163 was first published in the National Vulnerability Database on August 20, 2026, with the most recent update on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-17163 actively exploited?
CVE-2026-17163 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 67.4% of all scored CVEs.
What is the CVSS score of CVE-2026-17163?
CVE-2026-17163 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-17163?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-17163, 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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