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CVE-2016-6817

Quick assessment

Affected

Apache Software Foundation Apache Tomcat

Exploitation

High exploitation probability; assess promptly

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）软件基金会下属的Jakarta项目的一款轻量级Web应用服务器，它主要用于开发和调试JSP程序，适用于中小型系统。 Apache Tomcat 9.0.0.M1至9.0.0.M11版本和8.5.0至8.5.6版本中存在拒绝服务漏洞。攻击者可利用该漏洞造成拒绝服务。

AI Predicted 7.5 Difficulty: Easy EPSS 7.19% · P94 Updated Feb 21, 2026

Possible ATT&CK Techniques 2 AI

T1499.003 · Application Exhaustion Flood T1499.001 · OS Exhaustion Flood

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I. Basic Information for CVE-2016-6817

Vulnerability Information

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Vulnerability Title

N/A

Source: CVE Program / CVE List V5

Vulnerability Description

The HTTP/2 header parser in Apache Tomcat 9.0.0.M1 to 9.0.0.M11 and 8.5.0 to 8.5.6 entered an infinite loop if a header was received that was larger than the available buffer. This made a denial of service attack possible.

Source: CVE Program / CVE List V5

CVSS Information

N/A

Source: CVE Program / CVE List V5

Vulnerability Type

N/A

Source: CVE Program / CVE List V5

Vulnerability Title

Apache Tomcat 拒绝服务漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

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 to 9.0.0.M11	-

II. Public POCs for CVE-2016-6817

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2016-6817

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Vendor Advisories for CVE-2016-6817 (3)

https://security.netapp.com/advisory/ntap-20180607-0001/ x_refsource_CONFIRM
http://www.securityfocus.com/bid/94462 vdb-entry x_refsource_BID
http://www.securitytracker.com/id/1037330 vdb-entry x_refsource_SECTRACK

Mailing List Discussions for CVE-2016-6817 (5)

https://lists.apache.org/thread.html/a9f24571460af003071475b75f18cad81ebcc36fa7c876965a75e32a%40%3Cannounce.tomcat.apache.org%3E mailing-list x_refsource_MLIST
https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E mailing-list x_refsource_MLIST
https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a%40%3Cdev.tomcat.apache.org%3E mailing-list x_refsource_MLIST
https://lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3%40%3Cdev.tomcat.apache.org%3E mailing-list x_refsource_MLIST
https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org%3E mailing-list x_refsource_MLIST

https://www.cve.org/CVERecord?id=CVE-2016-6817

Same Patch Batch · Apache Software Foundation · 2017-08-10 · 9 CVEs total

CVE-2016-0762		Apache Tomcat 信息泄露漏洞
CVE-2016-5018		Apache Tomcat 安全特征问题漏洞
CVE-2016-6794		Apache Tomcat 信息泄露漏洞
CVE-2016-6812		Apache CXF 跨站脚本漏洞
CVE-2016-8739		Apache CXF JAX-RS 安全漏洞
CVE-2017-3156		Apache CXF 信息泄露漏洞
CVE-2016-6797		Apache Tomcat 访问控制错误漏洞
CVE-2016-8745		Apache Tomcat 信息泄露漏洞

IV. Related Vulnerabilities

Same product: Apache Tomcat

Same vendor: Apache Software Foundation