CVE-2026-9267

MEDIUMPre-NVD 6.96.9—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 81% 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, secondary
Trending — 3 sources updated this week
6.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.9Exploit: None knownExposed: 0

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

Eclipse tinydtls before commit b3efd41ad111a4920f599f51ffa4f5e9f1e72221 contains an out-of-bounds read vulnerability in the check_server_certificate() function that allows unauthenticated attackers to trigger reads beyond valid buffer boundaries by crafting a Certificate handshake message with a specific fragment_length value. Attackers can exploit missing buffer length validation before uint24 reads, memcmp, and memcpy operations during DTLS epoch 0 on both client and server paths to cause denial of service on memory-constrained devices.

CVSS v3
6.9
EG Score
6.9(medium)
EG Risk
46(Track)
EG Risk 46/100SSVC: 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
Severity69% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
19%
KEV
Not listed

Published

June 29, 2026

Last Modified

June 29, 2026

Advisory Details (1)

Auto-updated Jun 29, 2026
No patch confirmed yet.
generic

CVE Request - Eclipse Tinydtls OOB Read (#112) · Issues · Eclipse Projects Security / cve-assignment · GitLab

https://gitlab.eclipse.org/security/cve-assignment/-/work_items/112

Vendor Advisories for CVE-2026-9267(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 / 56× 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 159 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. 2026-09-06 14:46 UTCEG score recompute
  6. 2026-09-06 14:46 UTCGHSA enrichment
  7. 2026-09-06 13:48 UTCEPSS rescore
  8. 2026-09-05 15:31 UTCEPSS rescore
  9. 2026-09-04 05:07 UTCEPSS rescore
  10. 2026-09-02 14:12 UTCEPSS rescore
  11. 2026-09-01 13:54 UTCEPSS rescore
  12. 2026-09-01 04:40 UTCEPSS rescore
  13. 2026-08-30 19:18 UTCEPSS rescore
  14. 2026-08-30 18:57 UTCEG score recompute
  15. 2026-08-30 18:57 UTCGHSA enrichment
  16. 2026-08-30 01:22 UTCEPSS rescore
  17. 2026-08-28 21:42 UTCEPSS rescore
  18. 2026-08-27 22:48 UTCEG score recompute
  19. 2026-08-27 22:48 UTCGHSA enrichment
  20. 2026-08-27 14:25 UTCEPSS rescore
  21. 2026-08-26 14:47 UTCEPSS rescore
  22. 2026-08-25 13:49 UTCEPSS rescore
  23. 2026-08-25 05:19 UTCEG score recompute
  24. 2026-08-25 05:19 UTCGHSA enrichment
  25. 2026-08-24 14:18 UTCEPSS rescore
Show 75 more
  1. 2026-08-24 06:43 UTCGHSA enrichment
  2. 2026-08-23 07:45 UTCGHSA enrichment
  3. 2026-08-22 09:07 UTCEG score recompute
  4. 2026-08-22 09:07 UTCGHSA enrichment
  5. 2026-08-21 23:49 UTCEPSS rescore
  6. 2026-08-21 04:54 UTCEG score recompute
  7. 2026-08-21 04:54 UTCGHSA enrichment
  8. 2026-08-20 22:56 UTCEPSS rescore
  9. 2026-08-20 05:53 UTCEG score recompute
  10. 2026-08-20 05:53 UTCGHSA enrichment
  11. 2026-08-19 17:04 UTCEPSS rescore
  12. 2026-08-18 23:21 UTCEG score recompute
  13. 2026-08-18 23:21 UTCGHSA enrichment
  14. 2026-08-18 13:49 UTCEPSS rescore
  15. 2026-08-17 13:53 UTCEG score recompute
  16. 2026-08-17 13:53 UTCGHSA enrichment
  17. 2026-08-17 13:47 UTCEPSS rescore
  18. 2026-08-16 15:18 UTCEG score recompute
  19. 2026-08-16 15:18 UTCGHSA enrichment
  20. 2026-08-16 14:56 UTCEPSS rescore
  21. 2026-08-16 14:56 UTCEPSS rescore
  22. 2026-08-16 02:15 UTCEPSS rescore
  23. 2026-08-15 16:43 UTCEG score recompute
  24. 2026-08-15 16:43 UTCGHSA enrichment
  25. 2026-08-15 01:31 UTCEPSS rescore
  26. 2026-08-14 18:08 UTCEG score recompute
  27. 2026-08-14 18:08 UTCGHSA enrichment
  28. 2026-08-13 22:00 UTCEPSS rescore
  29. 2026-08-13 19:32 UTCGHSA enrichment
  30. 2026-08-12 20:57 UTCEG score recompute
  31. 2026-08-12 20:57 UTCGHSA enrichment
  32. 2026-08-12 13:51 UTCEPSS rescore
  33. 2026-08-11 22:22 UTCEG score recompute
  34. 2026-08-11 22:22 UTCGHSA enrichment
  35. 2026-08-11 13:43 UTCEPSS rescore
  36. 2026-08-11 00:00 UTCEPSS rescore
  37. 2026-08-10 23:45 UTCGHSA enrichment
  38. 2026-08-10 01:10 UTCEG score recompute
  39. 2026-08-10 01:10 UTCGHSA enrichment
  40. 2026-08-09 13:47 UTCEPSS rescore
  41. 2026-08-09 02:35 UTCEG score recompute
  42. 2026-08-09 02:35 UTCGHSA enrichment
  43. 2026-08-08 16:37 UTCEPSS rescore
  44. 2026-08-08 03:59 UTCEG score recompute
  45. 2026-08-08 03:59 UTCGHSA enrichment
  46. 2026-08-07 16:30 UTCEPSS rescore
  47. 2026-08-07 05:24 UTCEG score recompute
  48. 2026-08-07 05:24 UTCGHSA enrichment
  49. 2026-08-06 13:47 UTCEPSS rescore
  50. 2026-08-06 06:46 UTCEG score recompute
  51. 2026-08-06 06:46 UTCGHSA enrichment
  52. 2026-08-05 19:17 UTCEPSS rescore
  53. 2026-08-05 19:17 UTCEPSS rescore
  54. 2026-08-05 08:11 UTCEG score recompute
  55. 2026-08-05 08:10 UTCGHSA enrichment
  56. 2026-08-04 15:10 UTCEPSS rescore
  57. 2026-08-04 10:39 UTCEPSS rescore
  58. 2026-08-04 08:48 UTCEG score recompute
  59. 2026-08-04 08:48 UTCGHSA enrichment
  60. 2026-08-03 10:36 UTCEPSS rescore
  61. 2026-08-03 07:46 UTCGHSA enrichment
  62. 2026-08-02 08:34 UTCEG score recompute
  63. 2026-08-02 08:34 UTCGHSA enrichment
  64. 2026-08-02 02:27 UTCEPSS rescore
  65. 2026-08-01 09:58 UTCEG score recompute
  66. 2026-08-01 09:58 UTCGHSA enrichment
  67. 2026-08-01 04:16 UTCEPSS rescore
  68. 2026-07-31 11:22 UTCEG score recompute
  69. 2026-07-31 11:22 UTCGHSA enrichment
  70. 2026-07-30 16:28 UTCEPSS rescore
  71. 2026-07-30 12:22 UTCEG score recompute
  72. 2026-07-30 12:22 UTCGHSA enrichment
  73. 2026-07-30 01:30 UTCEPSS rescore
  74. 2026-07-29 13:06 UTCEG score recompute
  75. 2026-07-29 13:06 UTCGHSA enrichment

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Frequently asked(5)

What is CVE-2026-9267?
CVE-2026-9267 is a medium vulnerability published on June 29, 2026. Eclipse tinydtls before commit b3efd41ad111a4920f599f51ffa4f5e9f1e72221 contains an out-of-bounds read vulnerability in the checkservercertificate() function that allows unauthenticated attackers to trigger reads beyond valid buffer boundaries by crafting a Certificate handshake message with a…
When was CVE-2026-9267 disclosed?
CVE-2026-9267 was first published in the National Vulnerability Database on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9267 actively exploited?
CVE-2026-9267 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 81.0% of all scored CVEs.
What is the CVSS score of CVE-2026-9267?
CVE-2026-9267 has a CVSS v3 base score of 6.9 (NVD).
How do I remediate CVE-2026-9267?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9267, 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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