CVE-2011-5063

CVE-2011-5063 is a medium-severity vulnerability in Apache Tomcat with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

• Severity: Medium (CVSS 2.0 base score 4.3)
• EPSS exploit prediction: 7% (93rd percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-287
• Affected product: Apache Tomcat
• Published: 2012-01-14
• Last modified: 2026-06-16

Description

The HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.34, 6.x before 6.0.33, and 7.x before 7.0.12 does not check realm values, which might allow remote attackers to bypass intended access restrictions by leveraging the availability of a protection space with weaker authentication or authorization requirements, a different vulnerability than CVE-2011-1184.

Frequently asked questions

What is CVE-2011-5063?

The HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.34, 6.x before 6.0.33, and 7.x before 7.0.12 does not check realm values, which might allow remote attackers to bypass intended access restrictions by leveraging the availability of a protection space with weaker authentication or authorization requirements, a different vulnerability than CVE-2011-1184.

How severe is CVE-2011-5063?

CVE-2011-5063 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2011-5063 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-5063?

CVE-2011-5063 primarily affects Apache Tomcat. In total, 77 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-5063?

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

When was CVE-2011-5063 published?

CVE-2011-5063 was published on 2012-01-14 and last updated on 2026-06-16.

References

• http://lists.opensuse.org/opensuse-security-announce/2012-02/msg00002.html
• http://lists.opensuse.org/opensuse-security-announce/2012-02/msg00006.html
• http://marc.info/?l=bugtraq&m=139344343412337&w=2
• http://rhn.redhat.com/errata/RHSA-2012-0074.html
• http://rhn.redhat.com/errata/RHSA-2012-0075.html
• http://rhn.redhat.com/errata/RHSA-2012-0076.html
• http://rhn.redhat.com/errata/RHSA-2012-0077.html
• http://rhn.redhat.com/errata/RHSA-2012-0078.html
• http://rhn.redhat.com/errata/RHSA-2012-0325.html
• http://secunia.com/advisories/57126
• http://svn.apache.org/viewvc?view=rev&rev=1087655
• http://svn.apache.org/viewvc?view=rev&rev=1158180
• http://svn.apache.org/viewvc?view=rev&rev=1159309
• 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/2012/dsa-2401
• http://www.redhat.com/support/errata/RHSA-2011-1845.html
• https://lists.apache.org/thread.html/06cfb634bc7bf37af7d8f760f118018746ad8efbd519c4b789ac9c2e%40%3Cdev.tomcat.apache.org%3E
• https://lists.apache.org/thread.html/8dcaf7c3894d66cb717646ea1504ea6e300021c85bb4e677dc16b1aa%40%3Cdev.tomcat.apache.org%3E
• https://lists.apache.org/thread.html/r3aacc40356defc3f248aa504b1e48e819dd0471a0a83349080c6bcbf%40%3Cdev.tomcat.apache.org%3E
• https://lists.apache.org/thread.html/r584a714f141eff7b1c358d4679288177bd4ca4558e9999d15867d4b5%40%3Cdev.tomcat.apache.org%3E

Affected products (77)

• 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:5.5.30:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.31:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.32:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:5.5.33:*:*:*:*:*:*:*
• cpe:2.3:a:apache:tomcat:6.0:*:*:*:*:*:*:*
• 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:*:*:*:*:*:*:*

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