CVE-2026-9509

HIGHNVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.7 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 72% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.7Exploit: None knownExposed: 0

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

An unhandled exception in Suprema BioStar 2 (Server), versions 2.9.8, 2.9.10, and 2.9.11, that allows an unauthenticated remote attacker to cause a denial of service (DoS) by sending HTTP POST requests to the ‘/api/migration’ endpoint. This request triggers a failure that halts critical processes, leaving the system offline until the services or server are manually restarted. As a result, access control readers cease to function, and potential failures may occur in third-party integrations. Since the exploit requires no privileges or user interaction and is trivial to automate, the impact on availability is high, and the effect extends to interconnected systems.

CVSS v3
8.7
EG Score
8.7(medium)
EG Risk
54(Track)
EG Risk 54/100SSVC: 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
Severity87% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

May 29, 2026

Last Modified

July 21, 2026

Advisory Details (1)

Auto-updated Jun 2, 2026
No patch confirmed yet.
generic

Multiple vulnerabilities in Suprema's BioStar | INCIBE-CERT | INCIBE

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-supremas-biostar

Vendor Advisories for CVE-2026-9509(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 6× in last 7d / 67× 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 212 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-9509?
CVE-2026-9509 is a high vulnerability published on May 29, 2026. An unhandled exception in Suprema BioStar 2 (Server), versions 2.9.8, 2.9.10, and 2.9.11, that allows an unauthenticated remote attacker to cause a denial of service (DoS) by sending HTTP POST requests to the ‘/api/migration’ endpoint. This request triggers a failure that halts critical processes,…
When was CVE-2026-9509 disclosed?
CVE-2026-9509 was first published in the National Vulnerability Database on May 29, 2026, with the most recent update on July 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9509 actively exploited?
CVE-2026-9509 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 71.9% of all scored CVEs.
What is the CVSS score of CVE-2026-9509?
CVE-2026-9509 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2026-9509?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9509, 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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