CVE-2010-2227

mediumpriority · attend · 55EPSS 0.548 · 99 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · functional

Likely / severe?

54.8% (99th) EPSS

CVSS 6.4 · medium

Is it mine?

59 products

Check your exposure

Who says so?

3 sources

enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

Apache Tomcat 5.5.0 through 5.5.29, 6.0.0 through 6.0.27, and 7.0.0 beta does not properly handle an invalid Transfer-Encoding header, which allows remote attackers to cause a denial of service (application outage) or obtain sensitive information via a crafted header that interferes with "recycling of a buffer."

cvss

Technical severity, 0–10. One row per scoring source.

6.4

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.06.4mediumAV:N/AC:L/Au:N/C:P/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 4.9

v2.06.4mediumAV:N/AC:L/Au:N/C:P/I:N/A:P/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-119USprimaryCWE-119US

exploits (2)

Public proof-of-concept and weaponised exploit code.

auxiliary/dos/http/apache_tomcat_transfer_encodingApache Tomcat Transfer-Encoding Information Disclosure and DoSfunctional · metasploit
auxiliary/dos/http/slowlorisSlowloris Denial of Service Attackfunctional · metasploit

affected products (59)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
apache tomcat= 5.5.0nvdUScpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat= 5.5.1nvdUScpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat= 5.5.10nvdUScpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat= 5.5.11nvdUScpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat= 5.5.12nvdUScpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat= 5.5.13nvdUScpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat= 5.5.14nvdUScpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat= 5.5.15nvdUScpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat= 5.5.16nvdUScpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat= 5.5.17nvdUScpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat= 5.5.18nvdUScpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat= 5.5.19nvdUScpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat= 5.5.2nvdUScpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat= 5.5.20nvdUScpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat= 5.5.21nvdUScpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat= 5.5.22nvdUScpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat= 5.5.23nvdUScpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat= 5.5.24nvdUScpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat= 5.5.25nvdUScpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*

showing 20 of 59

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-cxg2-49rq-8gcrApache Tomcat does not properly handle an invalid Transfer-Encoding header2022-05-14ghsa · osvUS
Apache Tomcat 5.5.0 through 5.5.29, 6.0.0 through 6.0.27, and 7.0.0 beta does not properly handle an invalid Transfer-Encoding header, which allows remote attackers to cause a denial of service (application outage) or obtain sensitive information via a crafted header that interferes with "recycling of a buffer."

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd osv NVD CVE.org MITRE

published 2010-07-13modified 2026-06-16

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Related entries.

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+21023 more

references (96)

External citations — patches, advisories, analysis.

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