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CVE-2026-42100— DoS in Sparx Pro Cloud Server

Quick assessment

Affected
Sparx Systems Pro Cloud Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Sparx Systems Sparx Pro Cloud Server是澳大利亚Sparx Systems公司的一款支持模型仓库远程访问与协作管理的建模服务平台。 Sparx Pro Cloud Server 6.1版本及之前版本存在安全漏洞，该漏洞源于对语法无效结构的处理不当，攻击者发送特制SQL查询可导致拒绝服务攻击。

AI Predicted 7.5 Difficulty: Easy EPSS 0.68% · P52

Affected Version Matrix 1

VendorProduct Version RangeStatus
Sparx Systems Pro Cloud Server ≤ 6.1 affected
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I. Basic Information for CVE-2026-42100

Vulnerability Information
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Vulnerability Title
DoS in Sparx Pro Cloud Server
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Handling of Syntactically Invalid Structure in Sparx Pro Cloud Server allows Denial of Service (DoS) attack to be executed by sending an specially crafted SQL query. This causes the Pro Cloud Server service to terminate unexpectedly.  The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only version 6.1 (build 167) and below were tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
语法无效结构处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Sparx Systems Sparx Pro Cloud Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sparx Systems Sparx Pro Cloud Server是澳大利亚Sparx Systems公司的一款支持模型仓库远程访问与协作管理的建模服务平台。 Sparx Pro Cloud Server 6.1版本及之前版本存在安全漏洞，该漏洞源于对语法无效结构的处理不当，攻击者发送特制SQL查询可导致拒绝服务攻击。
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
Sparx Systems Pro Cloud Server 0 ~ 6.1 -

II. Public POCs for CVE-2026-42100

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-42100

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Vendor Advisories for CVE-2026-42100 (1)

Security Blog Posts for CVE-2026-42100 (2)

Vendor Pages for CVE-2026-42100 (1)

Same Patch Batch · Sparx Systems · 2026-05-19 · 5 CVEs total

CVE-2026-42096 Broken Access Control in Sparx Pro Cloud Server
CVE-2026-42098 Authorization Bypass in Sparx Enterprise Architect
CVE-2026-42099 Race Condition in Sparx Pro Cloud Server
CVE-2026-42097 Authentication Bypass in Sparx Pro Cloud Server

IV. Related Vulnerabilities

Same product: Pro Cloud Server
Same vendor: Sparx Systems
Same weakness: CWE-228