CVE-2026-17276

CRITICALNVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.9 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 82% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
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 i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to escalate privileges due to improper authorization in the handling of high-authority threads.

CVSS v3
9.9
EG Score
9.9(medium)
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
18%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 13, 2026

Advisory Details (1)

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

Security Bulletin: IBM i is Affected By Multiple Vulnerabilities in Navigator for i

https://www.ibm.com/support/pages/node/7283292

Vendor Advisories for CVE-2026-17276(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 53× in last 7d / 73× 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. 2026-08-21 05:36 UTCGHSA enrichment
  2. 2026-08-21 01:20 UTCEG score recompute
  3. 2026-08-21 01:20 UTCGHSA enrichment
  4. 2026-08-20 22:55 UTCEPSS rescore
  5. 2026-08-20 21:04 UTCGHSA enrichment
  6. 2026-08-20 16:48 UTCGHSA enrichment
  7. 2026-08-20 12:23 UTCGHSA enrichment
  8. 2026-08-20 08:07 UTCGHSA enrichment
  9. 2026-08-20 03:51 UTCGHSA enrichment
  10. 2026-08-19 23:34 UTCGHSA enrichment
  11. 2026-08-19 19:18 UTCEG score recompute
  12. 2026-08-19 19:18 UTCGHSA enrichment
  13. 2026-08-19 17:03 UTCEPSS rescore
  14. 2026-08-19 14:57 UTCGHSA enrichment
  15. 2026-08-19 10:41 UTCGHSA enrichment
  16. 2026-08-19 06:22 UTCGHSA enrichment
  17. 2026-08-19 01:55 UTCGHSA enrichment
  18. 2026-08-18 21:39 UTCGHSA enrichment
  19. 2026-08-18 17:20 UTCEG score recompute
  20. 2026-08-18 17:20 UTCGHSA enrichment
  21. 2026-08-18 13:48 UTCEPSS rescore
  22. 2026-08-18 12:45 UTCGHSA enrichment
  23. 2026-08-18 08:03 UTCGHSA enrichment
  24. 2026-08-18 03:45 UTCGHSA enrichment
  25. 2026-08-17 23:30 UTCGHSA enrichment
Show 48 more
  1. 2026-08-17 19:14 UTCGHSA enrichment
  2. 2026-08-17 14:35 UTCEG score recompute
  3. 2026-08-17 14:35 UTCGHSA enrichment
  4. 2026-08-17 13:47 UTCEPSS rescore
  5. 2026-08-17 10:18 UTCGHSA enrichment
  6. 2026-08-17 06:02 UTCGHSA enrichment
  7. 2026-08-17 01:40 UTCGHSA enrichment
  8. 2026-08-16 21:24 UTCGHSA enrichment
  9. 2026-08-16 17:08 UTCEG score recompute
  10. 2026-08-16 17:08 UTCGHSA enrichment
  11. 2026-08-16 14:56 UTCEPSS rescore
  12. 2026-08-16 12:52 UTCGHSA enrichment
  13. 2026-08-16 08:36 UTCGHSA enrichment
  14. 2026-08-16 04:20 UTCEG score recompute
  15. 2026-08-16 04:20 UTCGHSA enrichment
  16. 2026-08-16 02:14 UTCEPSS rescore
  17. 2026-08-16 00:04 UTCGHSA enrichment
  18. 2026-08-15 19:48 UTCGHSA enrichment
  19. 2026-08-15 15:32 UTCGHSA enrichment
  20. 2026-08-15 11:16 UTCGHSA enrichment
  21. 2026-08-15 07:00 UTCGHSA enrichment
  22. 2026-08-15 02:44 UTCEG score recompute
  23. 2026-08-15 02:44 UTCGHSA enrichment
  24. 2026-08-15 01:30 UTCEPSS rescore
  25. 2026-08-14 22:27 UTCGHSA enrichment
  26. 2026-08-14 18:11 UTCGHSA enrichment
  27. 2026-08-14 13:56 UTCGHSA enrichment
  28. 2026-08-14 09:40 UTCGHSA enrichment
  29. 2026-08-14 05:25 UTCGHSA enrichment
  30. 2026-08-14 01:09 UTCEG score recompute
  31. 2026-08-14 01:09 UTCGHSA enrichment
  32. 2026-08-13 22:00 UTCEPSS rescore
  33. 2026-08-13 20:53 UTCGHSA enrichment
  34. 2026-08-13 16:37 UTCEG score recompute▲ 0.30
  35. 2026-08-13 16:37 UTCGHSA enrichment
  36. 2026-08-13 16:37 UTCNVD updateCVSS v3 → 9.9
  37. 2026-08-13 14:05 UTCGHSA enrichment
  38. 2026-08-13 09:49 UTCGHSA enrichment
  39. 2026-08-13 05:33 UTCGHSA enrichment
  40. 2026-08-13 01:17 UTCGHSA enrichment
  41. 2026-08-12 21:01 UTCGHSA enrichment
  42. 2026-08-12 20:20 UTCEG score recompute
  43. 2026-08-12 20:20 UTCGHSA enrichment
  44. 2026-08-12 19:46 UTCEG score recompute
  45. 2026-08-12 19:46 UTCGHSA enrichment
  46. 2026-08-12 18:18 UTCEG score recompute
  47. 2026-08-12 17:26 UTCEG score recompute
  48. 2026-08-12 17:25 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-17276?
CVE-2026-17276 is a critical vulnerability published on August 12, 2026. IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to escalate privileges due to improper authorization in the handling of high-authority threads.
When was CVE-2026-17276 disclosed?
CVE-2026-17276 was first published in the National Vulnerability Database on August 12, 2026, with the most recent update on August 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-17276 actively exploited?
CVE-2026-17276 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 82.3% of all scored CVEs.
What is the CVSS score of CVE-2026-17276?
CVE-2026-17276 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-17276?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-17276, 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-2026-17276

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