CVE-2026-63252

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-04. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
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: 0.6%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In Eclipse Milo versions 0.6.0 through 1.1.4, UASC server transport handlers fail to release retained partial message chunks when a channel disconnects, allowing a remote unauthenticated client to exhaust pooled direct memory by repeatedly sending incomplete chunks and disconnecting, potentially terminating the server.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100CISA SSVC

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%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.6%
EPSS %ILE
45th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 4, 2026

Last Modified

August 5, 2026

Advisory Details (3)

Auto-updated Aug 4, 2026
Patch available. Sources: github_commit.
generic

[Eclipse Milo] CVE Reservation Request: Pre-session direct-memory leak (#179) · Issues · Eclipse Projects Security / cve-assignment · GitLab

https://gitlab.eclipse.org/security/cve-assignment/-/work_items/179
generic

[Eclipse Milo] 6 security findings in Eclipse Milo (#598) · Issues · Eclipse Projects Security / vulnerability-reports · GitLab

https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/598
github_commit Patch Available

commit 459715793ec5 (eclipse-milo/milo)

Patch available: eclipse-milo/milo v1.1.5 (contains commit 459715793ec5)

https://github.com/eclipse-milo/milo/commit/459715793ec54b0f33367a14f94264500a0d872b

Vendor Advisories for CVE-2026-63252(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 19× in last 7d / 83× 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 207 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-63252?
CVE-2026-63252 is a high vulnerability published on August 4, 2026. In Eclipse Milo versions 0.6.0 through 1.1.4, UASC server transport handlers fail to release retained partial message chunks when a channel disconnects, allowing a remote unauthenticated client to exhaust pooled direct memory by repeatedly sending incomplete chunks and disconnecting, potentially…
When was CVE-2026-63252 disclosed?
CVE-2026-63252 was first published on August 4, 2026, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-63252 actively exploited?
CVE-2026-63252 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (45th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-63252?
CVE-2026-63252 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-63252?
A fix for CVE-2026-63252 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-63252 are linked in the Vendor Advisories panel on this page.

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