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CVE-2025-42873— Denial of Service (DoS) in SAPUI5 framework (Markdown-it component)

Quick assessment

Affected
SAP_SE SAPUI5 framework (Markdown-it component)
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.

SAP SAPUI5是德国思爱普（SAP）公司的一款JavaScript应用程序框架。 SAP SAPUI5存在安全漏洞，该漏洞源于使用过时的第三方库导致无限循环，可能造成拒绝服务攻击。

CVSS 5.9 · Medium EPSS 0.38% · P30

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2025-42873

Vulnerability Information
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Vulnerability Title
Denial of Service (DoS) in SAPUI5 framework (Markdown-it component)
Source: CVE Program / CVE List V5
Vulnerability Description
SAPUI5 (and OpenUI5) packages use outdated 3rd party libraries with known security vulnerabilities. When markdown-it encounters special malformed input, it fails to terminate properly, resulting in an infinite loop. This Denial of Service via infinite loop causes high CPU usage and system unresponsiveness due to a blocked processing thread. This vulnerability has no impact on confidentiality or integrity but has a high impact on system availability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不对称的资源消耗(放大攻击)
Source: CVE Program / CVE List V5
Vulnerability Title
SAP SAPUI5 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SAP SAPUI5是德国思爱普（SAP）公司的一款JavaScript应用程序框架。 SAP SAPUI5存在安全漏洞，该漏洞源于使用过时的第三方库导致无限循环，可能造成拒绝服务攻击。
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
SAP_SE SAPUI5 framework (Markdown-it component) SAP_UI 755 -

II. Public POCs for CVE-2025-42873

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III. Intelligence Information for CVE-2025-42873

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Other References for CVE-2025-42873 (1)

Same Patch Batch · SAP_SE · 2025-12-09 · 12 CVEs total

CVE-2025-42880 9.9 CRITICAL Code Injection vulnerability in SAP Solution Manager
CVE-2025-42928 9.1 CRITICAL Deserialization Vulnerability in SAP jConnect - SDK for ASE
CVE-2025-42878 8.2 HIGH Sensitive Data Exposure in SAP Web Dispatcher and Internet Communication Manager (ICM)
CVE-2025-42874 7.9 HIGH Denial of service (DOS) in SAP NetWeaver (remote service for Xcelsius)
CVE-2025-42877 7.5 HIGH Memory Corruption vulnerability in SAP Web Dispatcher, Internet Communication Manager and
CVE-2025-42876 7.1 HIGH Missing Authorization Check in SAP S/4 HANA Private Cloud (Financials General Ledger)
CVE-2025-42875 6.6 MEDIUM Missing Authentication check in SAP NetWeaver Internet Communication Framework
CVE-2025-42904 6.5 MEDIUM Information Disclosure vulnerability in Application Server ABAP
CVE-2025-42872 6.1 MEDIUM Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Enterprise Portal
CVE-2025-42891 5.5 MEDIUM Missing Authorization check in SAP Enterprise Search for ABAP
CVE-2025-42896 5.4 MEDIUM Server-Side Request Forgery (SSRF) in SAP BusinessObjects Business Intelligence Platform

IV. Related Vulnerabilities

Same vendor: SAP_SE
Same weakness: CWE-405

V. Comments for CVE-2025-42873

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