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CVE-2012-0022

24
FAUCET Score

CVE-2012-0022 describes a denial-of-service vulnerability affecting Apache Tomcat versions 5.5.x, 6.x, and 7.x due to inefficient parameter handling. An unauthenticated remote attacker can exploit this by sending a request with numerous parameters and values, leading to high CPU consumption. This vulnerability has a CVSS score of 5.0, indicating a medium severity with low attack complexity and a potential impact of partial availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
5.5.0CPE matchmatch criteria
cpe:2.3:a:apache:tomcat:5.5.0:*:*:*:*:*:*:*
5.5.1CPE matchmatch criteria
cpe:2.3:a:apache:tomcat:5.5.1:*:*:*:*:*:*:*
5.5.2CPE matchmatch criteria
cpe:2.3:a:apache:tomcat:5.5.2:*:*:*:*:*:*:*
5.5.3CPE matchmatch criteria
cpe:2.3:a:apache:tomcat:5.5.3:*:*:*:*:*:*:*
5.5.4CPE matchmatch criteria
cpe:2.3:a:apache:tomcat:5.5.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
10.86%
Probability of exploitation in next 30 days
EPSS Percentile
95.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.1086 is in the 94th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (23)

mavenpatch availablevia ghsa
Product: org.apache.tomcat:tomcatFixed in: 5.5.35
mavenpatch availablevia ghsa
Product: org.apache.tomcat:tomcatFixed in: 6.0.34
mavenpatch availablevia ghsa
Product: org.apache.tomcat:tomcatFixed in: 7.0.23
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Portal 4.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Portal 5.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss SOA Platform 5.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Platform 5.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Server 1.0
View patch
redhatpatch availablevia redhat_api
Product: JBEWP 5 for RHEL 5Fixed in: jbossweb-0:2.1.12-3_patch_03.2.ep5.el5
View patch
redhatpatch availablevia redhat_api
Product: JBEWP 5 for RHEL 6Fixed in: jbossweb-0:2.1.12-3_patch_03.2.ep5.el6
View patch
redhatpatch availablevia redhat_api
Product: JBoss Communications Platform 5.1
View patch
redhatpatch availablevia redhat_api
Product: JBoss Enterprise BRMS Platform 5.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: tomcat5-0:5.5.23-0jpp.31.el5_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: tomcat6-0:6.0.24-36.el6_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 5.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 5 for RHEL 4Fixed in: jbossweb-0:2.1.12-3_patch_03.2.ep5.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 5 for RHEL 5Fixed in: jbossweb-0:2.1.12-3_patch_03.2.ep5.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 5 for RHEL 6Fixed in: jbossweb-0:2.1.12-3_patch_03.2.ep5.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Web Server 1 for RHEL 5Fixed in: tomcat5-0:5.5.33-27_patch_07.ep5.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Web Server 1 for RHEL 5Fixed in: tomcat6-0:6.0.32-24_patch_07.ep5.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Web Server 1 for RHEL 6Fixed in: tomcat5-0:5.5.33-28_patch_07.ep5.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Web Server 1 for RHEL 6Fixed in: tomcat6-0:6.0.32-24_patch_07.ep5.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Operations Network 3.1
View patch

Vendor Advisories (2)

mavenGHSA-8h2q-qm9x-55jcmedium

Denial of Service in Apache Tomcat

May 4, 2022
redhatCVE-2012-0022Moderate

tomcat: large number of parameters DoS

Jan 17, 2012

References

archives.neohapsis.com / archives/bugtraq/2012-01/0112.html
marc.info
marc.info
marc.info
rhn.redhat.com / errata/RHSA-2012-0074.html
rhn.redhat.com / errata/RHSA-2012-0075.html
rhn.redhat.com / errata/RHSA-2012-0076.html
rhn.redhat.com / errata/RHSA-2012-0077.html
rhn.redhat.com / errata/RHSA-2012-0078.html
rhn.redhat.com / errata/RHSA-2012-0325.html
rhn.redhat.com / errata/RHSA-2012-0345.html
rhn.redhat.com / errata/RHSA-2012-1331.html
secunia.com / advisories/48213
secunia.com / advisories/48549
secunia.com / advisories/48790
secunia.com / advisories/48791
secunia.com / advisories/50863
exchange.xforce.ibmcloud.com / vulnerabilities/72425
lists.apache.org / thread.html/06cfb634bc7bf37af7d8f760f118018746ad8efbd519c4b789ac9c2e%40%3Cdev.tomcat.apache.org%3E
lists.apache.org / thread.html/8dcaf7c3894d66cb717646ea1504ea6e300021c85bb4e677dc16b1aa%40%3Cdev.tomcat.apache.org%3E
lists.apache.org / thread.html/r3aacc40356defc3f248aa504b1e48e819dd0471a0a83349080c6bcbf%40%3Cdev.tomcat.apache.org%3E
lists.apache.org / thread.html/r584a714f141eff7b1c358d4679288177bd4ca4558e9999d15867d4b5%40%3Cdev.tomcat.apache.org%3E
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16925
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18934
tomcat.apache.org / security-5.html
Vendor Advisory
tomcat.apache.org / security-6.html
Vendor Advisory
tomcat.apache.org / security-7.html
Vendor Advisory
debian.org / security/2012/dsa-2401
mandriva.com / security/advisories
mandriva.com / security/advisories
oracle.com / technetwork/topics/security/cpujan2013-1515902.html
securityfocus.com / bid/51447