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
Trending — 3 sources updated this week
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
29%
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 8× in last 7d / 36× 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 227 total refreshes for this CVE.

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

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 71.2% 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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