CVE-2026-18527

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreHIGH confidence

Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-29. a secondary CVSS source baseline 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.9Exploit: None knownExposed: 0

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

IBM Administration Runtime Expert for i 1R1M0 IBM Application Runtime Expert (ARE) for i could allow a remote attacker to gain elevated privileges, caused by ARE GUI component processing. An unauthenticated attacker can exploit this vulnerability to execute actions under another user's authenticated profile gaining elevated privileges on the IBM i system.

CVSS v3
9.9
EG Score
9.9(high)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity99% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

August 28, 2026

Last Modified

August 31, 2026

Advisory Details (1)

Auto-updated Sep 14, 2026
No patch confirmed yet.
generic

Security Bulletin: IBM Application Runtime Expert (ARE) for IBM i is vulnerable to a user gaining elevated privileges and sensitive information [CVE-2026-18527, CVE-2026-17203].

https://www.ibm.com/support/pages/node/7284580

Vendor Advisories for CVE-2026-18527(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 51× in last 7d / 172× 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 172 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-18527?
CVE-2026-18527 is a critical vulnerability published on August 28, 2026. IBM Administration Runtime Expert for i 1R1M0 IBM Application Runtime Expert (ARE) for i could allow a remote attacker to gain elevated privileges, caused by ARE GUI component processing. An unauthenticated attacker can exploit this vulnerability to execute actions under another user's…
When was CVE-2026-18527 disclosed?
CVE-2026-18527 was first published in the National Vulnerability Database on August 28, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18527 actively exploited?
CVE-2026-18527 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 78.7% of all scored CVEs.
What is the CVSS score of CVE-2026-18527?
CVE-2026-18527 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-18527?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18527, 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.

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