CVE-2026-63252

Memory Exhaustion via Unreleased Partial Message Chunks in Eclipse Milo

Published Aug 4, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Eclipse
Eclipse eclipse Milo
Vendors & Products Eclipse
Eclipse eclipse Milo
Type Values Removed Values Added
Title Memory Exhaustion via Unreleased Partial Message Chunks in Eclipse Milo
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Weaknesses CWE-401
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
eclipse
Published
Updated
Aug 4, 2026, 3:02 PM
Reserved
Jul 16, 2026, 1:58 PM
Status
Analyzed
Published
Aug 4, 2026, 1:18 PM
Modified
Oct 23, 2026, 11:10 PM