CVE-2026-9171

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-17. 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: 1%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 WebSphere Application Server and WebSphere Application Server Liberty are vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume memory resources.

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%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
44%
KEV
Not listed

Published

July 17, 2026

Last Modified

August 11, 2026

Advisory Details (1)

Auto-updated Jul 17, 2026
No patch confirmed yet.
generic

Security Bulletin: Vulnerabilities in IBM WebSphere Application (CVE-2026-50645, CVE-2026-9322, CVE-2026-11541, CVE-2026-4410, CVE-2026-9320, CVE-2026-8646, CVE-2026-11806, CVE-2026-9071, CVE-2026-11546, CVE-2026-5516) affects IBM PowerVM Novalink.

https://www.ibm.com/support/pages/node/7280226

Vendor Advisories for CVE-2026-9171(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 11× in last 7d / 85× 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 175 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-9171?
CVE-2026-9171 is a high vulnerability published on July 17, 2026. IBM WebSphere Application Server and WebSphere Application Server Liberty are vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume memory resources.
When was CVE-2026-9171 disclosed?
CVE-2026-9171 was first published in the National Vulnerability Database on July 17, 2026, with the most recent update on August 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9171 actively exploited?
CVE-2026-9171 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 55.8% of all scored CVEs.
What is the CVSS score of CVE-2026-9171?
CVE-2026-9171 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-9171?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9171, 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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