What is CVE-2012-3446?

CVE-2012-3446 is a medium-severity vulnerability in Apache Libcloud, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2012-11-04.

How severe is CVE-2012-3446?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Apache Libcloud

CVE-2012-3446

Apache Libcloud before 0.11.1 uses an incorrect regular expression during verification of whether 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 a crafted certificate.

Vulnerability class: Improper Certificate Validation

Published 2012-11-04 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.012 (67.6th percentile), scored 2026-10-06.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Apache Libcloud

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

svn.apache.org/repos/asf/libcloud/trunk/CHANGES (Release Notes)
www.cs.utexas.edu/~shmat/shmat_ccs12.pdf (Exploit)

Frequently asked questions

What is CVE-2012-3446?: CVE-2012-3446 is a medium-severity vulnerability in Apache Libcloud, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2012-11-04.
How severe is CVE-2012-3446?: Medium severity. CVSS v3 base score is 5.9 out of 10.