CVE-2026-16827

MEDIUMPre-NVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

Score 5.9 from GitHub Security Advisory published 2026-08-19. a secondary CVSS source baseline 5.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.9Exploit: 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 the use of an uninitialized stack pointer.

CVSS v3
5.9
EG Score
5.9(medium)
EG Risk
31(Track)
EG Risk 31/100SSVC: 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
Severity59% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

August 19, 2026

Last Modified

August 24, 2026

Advisory Details (1)

Auto-updated Aug 19, 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-2026-16827(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 / 81× 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. 2026-09-19 23:09 UTCEG score recompute
  2. 2026-09-19 23:09 UTCGHSA enrichment
  3. 2026-09-18 23:39 UTCEG score recompute
  4. 2026-09-18 23:39 UTCGHSA enrichment
  5. 2026-09-18 19:27 UTCEPSS rescore
  6. 2026-09-18 00:09 UTCEG score recompute
  7. 2026-09-18 00:09 UTCGHSA enrichment
  8. 2026-09-16 23:12 UTCEG score recompute
  9. 2026-09-16 23:12 UTCGHSA enrichment
  10. 2026-09-16 14:07 UTCEPSS rescore
  11. 2026-09-16 05:14 UTCEPSS rescore
  12. 2026-09-15 23:42 UTCEG score recompute
  13. 2026-09-15 23:42 UTCGHSA enrichment
  14. 2026-09-14 23:53 UTCGHSA enrichment
  15. 2026-09-14 00:00 UTCEG score recompute
  16. 2026-09-14 00:00 UTCGHSA enrichment
  17. 2026-09-13 16:46 UTCEPSS rescore
  18. 2026-09-13 00:31 UTCEG score recompute
  19. 2026-09-13 00:31 UTCGHSA enrichment
  20. 2026-09-12 15:00 UTCEPSS rescore
  21. 2026-09-12 01:01 UTCEG score recompute
  22. 2026-09-12 01:01 UTCGHSA enrichment
  23. 2026-09-11 14:52 UTCEPSS rescore
  24. 2026-09-11 09:36 UTCEPSS rescore
  25. 2026-09-11 01:31 UTCEG score recompute
Show 62 more
  1. 2026-09-11 01:31 UTCGHSA enrichment
  2. 2026-09-10 09:34 UTCEPSS rescore
  3. 2026-09-10 02:01 UTCGHSA enrichment
  4. 2026-09-09 02:32 UTCEG score recompute
  5. 2026-09-09 02:32 UTCGHSA enrichment
  6. 2026-09-08 22:00 UTCEPSS rescore
  7. 2026-09-07 16:01 UTCEPSS rescore
  8. 2026-09-07 11:30 UTCEG score recompute
  9. 2026-09-07 11:30 UTCGHSA enrichment
  10. 2026-09-06 13:47 UTCEPSS rescore
  11. 2026-09-06 11:57 UTCEG score recompute
  12. 2026-09-06 11:57 UTCGHSA enrichment
  13. 2026-09-05 12:28 UTCEG score recompute
  14. 2026-09-05 12:28 UTCGHSA enrichment
  15. 2026-09-04 12:58 UTCEG score recompute
  16. 2026-09-04 12:58 UTCGHSA enrichment
  17. 2026-09-04 05:06 UTCEPSS rescore
  18. 2026-09-03 13:28 UTCEG score recompute
  19. 2026-09-03 13:27 UTCGHSA enrichment
  20. 2026-09-02 14:11 UTCEPSS rescore
  21. 2026-09-02 13:54 UTCGHSA enrichment
  22. 2026-09-01 13:56 UTCEG score recompute
  23. 2026-09-01 13:56 UTCGHSA enrichment
  24. 2026-09-01 13:53 UTCEPSS rescore
  25. 2026-09-01 04:39 UTCEPSS rescore
  26. 2026-08-31 14:10 UTCEG score recompute
  27. 2026-08-31 14:10 UTCGHSA enrichment
  28. 2026-08-30 19:17 UTCEPSS rescore
  29. 2026-08-30 13:14 UTCEG score recompute
  30. 2026-08-30 13:14 UTCGHSA enrichment
  31. 2026-08-30 01:22 UTCEPSS rescore
  32. 2026-08-29 13:44 UTCEG score recompute
  33. 2026-08-29 13:44 UTCGHSA enrichment
  34. 2026-08-28 21:41 UTCEPSS rescore
  35. 2026-08-28 14:11 UTCGHSA enrichment
  36. 2026-08-27 14:41 UTCEG score recompute
  37. 2026-08-27 14:41 UTCGHSA enrichment
  38. 2026-08-27 14:25 UTCEPSS rescore
  39. 2026-08-26 15:08 UTCEG score recompute
  40. 2026-08-26 15:08 UTCGHSA enrichment
  41. 2026-08-26 14:46 UTCEPSS rescore
  42. 2026-08-25 15:38 UTCEG score recompute
  43. 2026-08-25 15:38 UTCGHSA enrichment
  44. 2026-08-25 13:48 UTCEPSS rescore
  45. 2026-08-24 16:09 UTCEG score recompute
  46. 2026-08-24 16:08 UTCGHSA enrichment
  47. 2026-08-24 11:25 UTCEG score recompute
  48. 2026-08-24 11:25 UTCGHSA enrichment
  49. 2026-08-23 11:55 UTCEG score recompute
  50. 2026-08-23 11:55 UTCGHSA enrichment
  51. 2026-08-23 00:19 UTCEPSS rescore
  52. 2026-08-22 12:26 UTCEG score recompute
  53. 2026-08-22 12:26 UTCGHSA enrichment
  54. 2026-08-21 23:49 UTCEPSS rescore
  55. 2026-08-21 12:56 UTCEG score recompute
  56. 2026-08-21 12:56 UTCGHSA enrichment
  57. 2026-08-20 22:55 UTCEPSS rescore
  58. 2026-08-20 13:26 UTCEG score recompute
  59. 2026-08-20 13:26 UTCGHSA enrichment
  60. 2026-08-19 20:21 UTCEG score recompute
  61. 2026-08-19 19:33 UTCEG score recompute
  62. 2026-08-19 19:32 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-16827?
CVE-2026-16827 is a medium vulnerability published on August 19, 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 the use of an uninitialized stack pointer.
When was CVE-2026-16827 disclosed?
CVE-2026-16827 was first published in the National Vulnerability Database on August 19, 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-2026-16827 actively exploited?
CVE-2026-16827 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 74.0% of all scored CVEs.
What is the CVSS score of CVE-2026-16827?
CVE-2026-16827 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2026-16827?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16827, 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

Explore the affected products and dependency analysis for CVE-2026-16827

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