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CVE-2026-63252

Quick assessment

Affected
Eclipse Foundation Eclipse Milo
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Eclipse Milo是美国Eclipse基金会开源的一个实现OPCUA协议的通信栈库。 Eclipse Milo 0.6.0版本至1.1.4版本存在资源管理错误漏洞，该漏洞源于UASC服务器传输处理程序在通道断开时未能释放保留的部分消息块，可能导致远程未认证客户端通过重复发送不完整块并断开连接来耗尽池化直接内存，从而终止服务器。

CVSS 8.7 · High EPSS 0.58% · P45

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
Eclipse Foundation Eclipse Milo 0.6.0≤ 1.1.4 affected
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I. Basic Information for CVE-2026-63252

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
在移除最后引用时对内存的释放不恰当(内存泄露)
Source: CVE Program / CVE List V5
Vulnerability Title
Eclipse Milo 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Eclipse Milo是美国Eclipse基金会开源的一个实现OPCUA协议的通信栈库。 Eclipse Milo 0.6.0版本至1.1.4版本存在资源管理错误漏洞，该漏洞源于UASC服务器传输处理程序在通道断开时未能释放保留的部分消息块，可能导致远程未认证客户端通过重复发送不完整块并断开连接来耗尽池化直接内存，从而终止服务器。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Eclipse Foundation Eclipse Milo 0.6.0 ~ 1.1.4 -

II. Public POCs for CVE-2026-63252

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7898 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-63252

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Patches & Fixes for CVE-2026-63252 (1)

Vendor Advisories for CVE-2026-63252 (1)

Same Patch Batch · Eclipse Foundation · 2026-08-04 · 7 CVEs total

CVE-2026-60007 9.1 CRITICAL Eclipse Milo 信息泄露漏洞
CVE-2026-58080 8.8 HIGH Eclipse Milo 授权问题漏洞
CVE-2026-10050 8.7 HIGH Digest authentication lossy encoding
CVE-2026-62927 8.7 HIGH Eclipse Milo 授权问题漏洞
CVE-2026-63248 6.9 MEDIUM Eclipse Milo 授权问题漏洞
CVE-2026-61387 6.9 MEDIUM Eclipse Milo 资源管理错误漏洞

IV. Related Vulnerabilities

Same product: Eclipse Milo
Same vendor: Eclipse Foundation
Same weakness: CWE-401

V. Comments for CVE-2026-63252

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