CVE-2012-5822

Name: CVE-2012-5822
Creator: NVD / NIST
Published: 2012-11-04T22:55:04.857+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.60%

Last modified Jun 16, 2026

CVE-2012-5822 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. The contribution feature in Zamboni does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, related to use of the Python urllib2 library.. EPSS estimates a 0.60% chance of exploitation in the next 30 days.

Description

The contribution feature in Zamboni does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, related to use of the Python urllib2 library.

Metrics

CVSS 3.1

7.4/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS Probability

0.60%

44.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions
Mozilla	Zamboni	All versions

References

http://www.cs.utexas.edu/~shmat/shmat_ccs12.pdfExploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/79929Third Party Advisory, VDB Entry
http://www.cs.utexas.edu/~shmat/shmat_ccs12.pdfExploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/79929Third Party Advisory, VDB Entry

Timeline

Published: Nov 4, 2012
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2012-5822?

How severe is CVE-2012-5822?

CVE-2012-5822 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.60% probability of exploitation in the next 30 days.

How do I fix CVE-2012-5822?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2012-5822?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST