CVE-2010-2227

CVE-2010-2227 is a medium-severity vulnerability in Apache Tomcat with a CVSS 2.0 base score of 6.4. Its EPSS exploit-prediction score of 55% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

• Severity: Medium (CVSS 2.0 base score 6.4)
• EPSS exploit prediction: 55% (99th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-119
• Affected product: Apache Tomcat
• Published: 2010-07-13
• Last modified: 2026-06-16

Description

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."

Frequently asked questions

What is CVE-2010-2227?

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."

How severe is CVE-2010-2227?

CVE-2010-2227 has a CVSS 2.0 base score of 6.4, rated medium severity.

Is CVE-2010-2227 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 55% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-2227?

CVE-2010-2227 primarily affects Apache Tomcat. In total, 55 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-2227?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2010-2227 published?

CVE-2010-2227 was published on 2010-07-13 and last updated on 2026-06-16.

References

• http://geronimo.apache.org/21x-security-report.html
• http://geronimo.apache.org/22x-security-report.html
• http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
• http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050207.html
• http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050214.html
• http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00006.html
• http://marc.info/?l=bugtraq&m=129070310906557&w=2
• http://marc.info/?l=bugtraq&m=136485229118404&w=2
• http://marc.info/?l=bugtraq&m=139344343412337&w=2
• http://secunia.com/advisories/40813
• http://secunia.com/advisories/41025
• http://secunia.com/advisories/42079
• http://secunia.com/advisories/42368
• http://secunia.com/advisories/42454
• http://secunia.com/advisories/43310
• http://secunia.com/advisories/44183
• http://secunia.com/advisories/57126
• http://securitytracker.com/id?1024180
• http://support.apple.com/kb/HT5002
• http://svn.apache.org/viewvc?view=revision&revision=958911
• http://svn.apache.org/viewvc?view=revision&revision=958977
• http://svn.apache.org/viewvc?view=revision&revision=959428
• http://tomcat.apache.org/security-5.html
• http://tomcat.apache.org/security-6.html
• http://tomcat.apache.org/security-7.html
• http://www.debian.org/security/2011/dsa-2207
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:176
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:177
• http://www.novell.com/support/viewContent.do?externalId=7007274
• http://www.novell.com/support/viewContent.do?externalId=7007275

Affected products (55)

• cpe:2.3:a:apache:tomcat:5.5.0:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.2:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.3:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.4:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.5:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.6:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.7:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.8:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.9:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.10:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.11:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.12:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.13:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.14:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.15:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.16:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.17:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.18:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.19:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.20:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.21:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.22:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.23:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.24:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.25:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.26:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.27:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.28:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.29:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:6.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:6.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:6.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:6.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:6.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:6.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:6.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:6.0.7:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:6.0.8:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:6.0.9:*:*:*:*:*:*:*

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