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CVE-2026-67859

Quick assessment

Affected
n/a n/a
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.

Open62541是Open62541团队开源的一款嵌入式Web服务器中间件。 Open62541 1.5.5版本存在安全漏洞，该漏洞源于Discovery/LDS处理存在缓冲区溢出，可能导致远程攻击者造成拒绝服务。

CVSS 7.5 · High EPSS 0.82% · P56

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
n/a n/a n/a affected
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I. Basic Information for CVE-2026-67859

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the Discovery/LDS handling.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Open62541 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Open62541是Open62541团队开源的一款嵌入式Web服务器中间件。 Open62541 1.5.5版本存在安全漏洞，该漏洞源于Discovery/LDS处理存在缓冲区溢出，可能导致远程攻击者造成拒绝服务。
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
- n/a n/a -

II. Public POCs for CVE-2026-67859

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9585 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-67859

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Patches & Fixes for CVE-2026-67859 (2)

Same Patch Batch · n/a · 2026-08-04 · 17 CVEs total

CVE-2026-67857 7.5 HIGH Open62541 安全漏洞
CVE-2026-67861 7.5 HIGH Open62541 安全漏洞
CVE-2026-67858 7.5 HIGH Open62541 安全漏洞
CVE-2026-18816 5.0 MEDIUM Baserow 2FA Verify Endpoint views.py verify improper authentication
CVE-2026-18819 4.3 MEDIUM RackTables cross-site request forgery
CVE-2026-18817 2.2 LOW Baserow Inactive Non-Staff User serializers.py BaserowImpersonateAuthTokenSerializer impro
CVE-2025-29296 H3C magic be18000 安全漏洞
CVE-2026-67979 NASA cFS 安全漏洞
CVE-2026-51400 Vim Project Vim 安全漏洞
CVE-2026-51401 Vim Project Vim 安全漏洞
CVE-2026-52370 O2OA 安全漏洞
CVE-2026-67856 Open62541 安全漏洞
CVE-2026-67855 Open62541 安全漏洞
CVE-2026-51144 Soliton Systems MailZen Management Protal 安全漏洞
CVE-2026-67862 Open62541 安全漏洞
CVE-2026-67860 Open62541 安全漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2026-67859

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