What is CVE-2012-5817?

CVE-2012-5817 is a high-severity vulnerability in Amazon Ec2 API Tools Java Library, classified under Improper Certificate Validation. CVSS score: 7.4/10. Published 2012-11-04.

How severe is CVE-2012-5817?

High severity. CVSS v3 base score is 7.4 out of 10.

Vulnerability in Amazon Ec2 API Tools Java Library

CVE-2012-5817

Codehaus XFire 1.2.6 and earlier, as used in the Amazon EC2 API Tools Java library and other products, 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.

Vulnerability class: Improper Certificate Validation

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

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.008 (54.3th percentile), scored 2026-10-06.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

www.cs.utexas.edu/~shmat/shmat_ccs12.pdf (Exploit)
exchange.xforce.ibmcloud.com/vulnerabilities/79934 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2012-5817?: CVE-2012-5817 is a high-severity vulnerability in Amazon Ec2 API Tools Java Library, classified under Improper Certificate Validation. CVSS score: 7.4/10. Published 2012-11-04.
How severe is CVE-2012-5817?: High severity. CVSS v3 base score is 7.4 out of 10.