Is CVE-2015-3908 in the CISA KEV catalog?

No. CVE-2015-3908 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-3908?

CVE-2015-3908 has a CVSS v2 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2015-3908?

CVE-2015-3908 has an EPSS score of 0.93% (56th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-3908?

Upgrade ansible on debian 11 to 1.9.2+dfsg-1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2015-3908

MEDIUM

4.3

CVSS v2

NVD

Description

Ansible before 1.9.2 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.

CWE-345

How to fix

Remediation Available

ansibleDebian

Fixed in:1.9.2+dfsg-1CVE-2015-3908

ansibleUbuntu

Fixed in:1.5.4+dfsg-1ubuntu0.1~esm3USN-7330-1

Fixed in:2.0.0.2-2ubuntu1.3+esm5USN-7330-1

Fixed in:2.5.1+dfsg-1ubuntu0.1+esm5USN-7330-1

Fixed in:2.9.6+dfsg-1ubuntu0.1~esm3USN-7330-1

ansible-fireballUbuntu

Fixed in:1.5.4+dfsg-1ubuntu0.1~esm3USN-7330-1

Fixed in:2.0.0.2-2ubuntu1.3+esm5USN-7330-1

ansible-node-fireballUbuntu

Fixed in:1.5.4+dfsg-1ubuntu0.1~esm3USN-7330-1

Fixed in:2.0.0.2-2ubuntu1.3+esm5USN-7330-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

0.93%probability of exploitation in 30 days

56thpercentile

Moderate risk: more likely to be exploited than 56% of all known CVEs.

References

Vendor Advisory1

ansible.com

Third-Party Advisory2

Mailing List1

openwall.com

Other references1

lists.debian.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.