CVE-2026-63252

HIGHNVD 7.57.5—
EchelonGraph scoreHIGH 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%CVSS: 7.5Exploit: None knownExposed: 0

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

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
7.5(high)
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%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
35%
KEV
Not listed

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 27× in last 7d / 73× 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.

  1. 2026-08-21 00:02 UTCEG score recompute
  2. 2026-08-21 00:02 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 12:15 UTCGHSA enrichment
  5. 2026-08-20 00:29 UTCEG score recompute
  6. 2026-08-20 00:29 UTCGHSA enrichment
  7. 2026-08-19 17:04 UTCEPSS rescore
  8. 2026-08-19 12:42 UTCGHSA enrichment
  9. 2026-08-19 00:56 UTCEG score recompute
  10. 2026-08-19 00:56 UTCGHSA enrichment
  11. 2026-08-18 13:48 UTCEPSS rescore
  12. 2026-08-18 13:10 UTCGHSA enrichment
  13. 2026-08-18 01:22 UTCEG score recompute
  14. 2026-08-18 01:22 UTCGHSA enrichment
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-17 13:31 UTCGHSA enrichment
  17. 2026-08-17 01:45 UTCEG score recompute
  18. 2026-08-17 01:45 UTCGHSA enrichment
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 13:58 UTCEG score recompute
  21. 2026-08-16 13:58 UTCGHSA enrichment
  22. 2026-08-16 02:11 UTCGHSA enrichment
  23. 2026-08-15 14:25 UTCGHSA enrichment
  24. 2026-08-15 02:38 UTCEG score recompute
  25. 2026-08-15 02:38 UTCGHSA enrichment
Show 48 more
  1. 2026-08-15 01:30 UTCEPSS rescore
  2. 2026-08-14 14:51 UTCGHSA enrichment
  3. 2026-08-14 03:05 UTCEG score recompute
  4. 2026-08-14 03:05 UTCGHSA enrichment
  5. 2026-08-13 22:00 UTCEPSS rescore
  6. 2026-08-13 15:18 UTCGHSA enrichment
  7. 2026-08-13 03:30 UTCGHSA enrichment
  8. 2026-08-12 15:43 UTCEG score recompute
  9. 2026-08-12 15:43 UTCGHSA enrichment
  10. 2026-08-12 13:51 UTCEPSS rescore
  11. 2026-08-12 03:57 UTCGHSA enrichment
  12. 2026-08-11 16:10 UTCEG score recompute
  13. 2026-08-11 16:10 UTCGHSA enrichment
  14. 2026-08-11 04:23 UTCEG score recompute
  15. 2026-08-11 04:23 UTCGHSA enrichment
  16. 2026-08-11 00:00 UTCEPSS rescore
  17. 2026-08-10 16:37 UTCGHSA enrichment
  18. 2026-08-10 04:51 UTCGHSA enrichment
  19. 2026-08-09 17:04 UTCEG score recompute
  20. 2026-08-09 17:04 UTCGHSA enrichment
  21. 2026-08-09 13:47 UTCEPSS rescore
  22. 2026-08-09 05:18 UTCGHSA enrichment
  23. 2026-08-08 17:32 UTCEG score recompute
  24. 2026-08-08 17:32 UTCGHSA enrichment
  25. 2026-08-08 16:37 UTCEPSS rescore
  26. 2026-08-08 05:45 UTCGHSA enrichment
  27. 2026-08-07 17:59 UTCEG score recompute
  28. 2026-08-07 17:59 UTCGHSA enrichment
  29. 2026-08-07 06:12 UTCGHSA enrichment
  30. 2026-08-06 18:26 UTCEG score recompute
  31. 2026-08-06 18:26 UTCGHSA enrichment
  32. 2026-08-06 13:47 UTCEPSS rescore
  33. 2026-08-06 06:39 UTCEG score recompute
  34. 2026-08-06 06:39 UTCGHSA enrichment
  35. 2026-08-05 19:17 UTCEPSS rescore
  36. 2026-08-05 19:17 UTCEPSS rescore
  37. 2026-08-05 18:52 UTCEG score recompute▼ 1.20
  38. 2026-08-05 18:52 UTCGHSA enrichment
  39. 2026-08-05 18:52 UTCNVD updateCVSS v3 → 7.5
  40. 2026-08-05 16:08 UTCGHSA enrichment
  41. 2026-08-05 04:21 UTCGHSA enrichment
  42. 2026-08-04 16:33 UTCEG score recompute
  43. 2026-08-04 16:33 UTCGHSA enrichment
  44. 2026-08-04 15:37 UTCEG score recompute
  45. 2026-08-04 15:37 UTCGHSA enrichment
  46. 2026-08-04 13:26 UTCEG score recompute
  47. 2026-08-04 12:33 UTCEG score recompute
  48. 2026-08-04 12:33 UTCMITRE cvelistV5first tracked

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 in the National Vulnerability Database 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% probability of exploitation in the next 30 days, which ranks it in the top 65.3% of all 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?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-63252, 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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