CVE-2026-63252

highpriority · track · 30EPSS 0.006 · 48 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.58% (48th) EPSS

CVSS 7.5 · high

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedEclipse Milocisa_csaf_ot
The Eclipse Foundation recommends users upgrade to Eclipse Milo 1.1.5 https://github.com/eclipse-milo/milo/releases/tag/v1.1.5.
https://github.com/eclipse-milo/milo/releases/tag/v1.1.5
MitigationEclipse Milocisa_csaf_ot
For users on Milo 0.6.x, there are no 0.6.x releases with the fixes, which requires users to migrate to Milo 1.1.5 or later.

cvss

Technical severity, 0–10. One row per scoring source.

8.7

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–8.7

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · CISA US

v4.08.7highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.08.7highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · emo@eclipse.org

v4.06.6mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-401USCWE-401US

affected products (4)

Products and version ranges known to be affected.

Eclipse Foundation Eclipse Foundation Eclipse Milo: >=0.6.0|<=1.1.40.6.0| → 1.1.4cisa_csaf_otUS
Eclipse Foundation Eclipse Milo0.6.0| → 1.1.4cisa_csaf_otUS
Eclipse Foundation Eclipse Milo≤ 0.6.0 ≤1.1.4enisa_euvdEU
eclipse milo0.6.0 → 1.1.5nvdUScpe:2.3:a:eclipse:milo:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-26-288-01Eclipse Foundation Eclipse Milo2026-10-15icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an attacker to delete protected data, recover user credentials and impersonate legitimate users, or cause the server to stop responding to all clients.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2026-08-04modified 2026-10-23

references (9)

External citations — patches, advisories, analysis.

scry

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