Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2025-52434— Apache Tomcat: APR/Native Connector crash leading to DoS

Quick assessment

Affected
Apache Software Foundation Apache Tomcat
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.

Apache Tomcat是美国阿帕奇（Apache）基金会的一款轻量级Web应用服务器。用于实现对Servlet和JavaServer Page（JSP）的支持。 Apache Tomcat 9.0.0.M1至9.0.106版本存在竞争条件问题漏洞，该漏洞源于竞争条件，可能导致HTTP/2连接问题。

AI Predicted 6.5 Difficulty: Moderate EPSS 2.07% · P81

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-52434

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Apache Tomcat: APR/Native Connector crash leading to DoS
Source: CVE Program / CVE List V5
Vulnerability Description
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Apache Tomcat when using the APR/Native connector. This was particularly noticeable with client initiated closes of HTTP/2 connections. This issue affects Apache Tomcat: from 9.0.0.M1 through 9.0.106. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Other, older, EOL versions may also be affected. Users are recommended to upgrade to version 9.0.107, which fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Tomcat 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Tomcat是美国阿帕奇（Apache）基金会的一款轻量级Web应用服务器。用于实现对Servlet和JavaServer Page（JSP）的支持。 Apache Tomcat 9.0.0.M1至9.0.106版本存在竞争条件问题漏洞，该漏洞源于竞争条件，可能导致HTTP/2连接问题。
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
Apache Software Foundation Apache Tomcat 9.0.0.M1 ~ 9.0.106 -

II. Public POCs for CVE-2025-52434

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-52434

请登录查看更多情报信息。

Same Patch Batch · Apache Software Foundation · 2025-07-10 · 11 CVEs total

CVE-2024-42516 Apache HTTP Server: HTTP response splitting
CVE-2024-43204 Apache HTTP Server: SSRF with mod_headers setting Content-Type header
CVE-2024-47252 Apache HTTP Server: mod_ssl error log variable escaping
CVE-2024-43394 Apache HTTP Server: SSRF on Windows due to UNC paths
CVE-2025-23048 Apache HTTP Server: mod_ssl access control bypass with session resumption
CVE-2025-49630 Apache HTTP Server: mod_proxy_http2 denial of service
CVE-2025-49812 Apache HTTP Server: mod_ssl TLS upgrade attack
CVE-2025-53020 Apache HTTP Server: HTTP/2 DoS by Memory Increase
CVE-2025-52520 Apache Tomcat: DoS via integer overflow in multipart file upload
CVE-2025-53506 Apache Tomcat: DoS via excessive h2 streams at connection start

IV. Related Vulnerabilities

Same product: Apache Tomcat
Same vendor: Apache Software Foundation
Same weakness: CWE-362

V. Comments for CVE-2025-52434

No comments yet

Leave a comment