CVE-2016-9587

Name: CVE-2016-9587
Creator: NVD / NIST
Published: 2018-04-24T16:29:00.22+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 17.87%

Last modified Jun 17, 2026

CVE-2016-9587 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. Ansible before versions 2.1.4, 2.2.1 is vulnerable to an improper input validation in Ansible's handling of data sent from client systems. An attacker with control over a client system being managed by Ansible and the ability to send facts back to the Ansible server could use this flaw to execute arbitrary code on the Ansible server using the Ansible server privileges.. EPSS estimates a 17.87% chance of exploitation in the next 30 days.

Description

Ansible before versions 2.1.4, 2.2.1 is vulnerable to an improper input validation in Ansible's handling of data sent from client systems. An attacker with control over a client system being managed by Ansible and the ability to send facts back to the Ansible server could use this flaw to execute arbitrary code on the Ansible server using the Ansible server privileges.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

17.87%

96.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Redhat	Ansible	< 2.1.4
Ansible	Ansible	< 2.2.1
Redhat	Openstack	11

References

http://rhn.redhat.com/errata/RHSA-2017-0195.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0260.htmlThird Party Advisory
http://www.securityfocus.com/bid/95352Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2017:0448Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:0515Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1685Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9587Issue Tracking, Third Party Advisory
https://security.gentoo.org/glsa/201701-77Third Party Advisory
https://www.exploit-db.com/exploits/41013/Exploit, Third Party Advisory, VDB Entry
http://rhn.redhat.com/errata/RHSA-2017-0195.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0260.htmlThird Party Advisory
http://www.securityfocus.com/bid/95352Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2017:0448Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:0515Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1685Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9587Issue Tracking, Third Party Advisory
https://security.gentoo.org/glsa/201701-77Third Party Advisory
https://www.exploit-db.com/exploits/41013/Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Apr 24, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-9587?

How severe is CVE-2016-9587?

CVE-2016-9587 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 17.87% probability of exploitation in the next 30 days.

How do I fix CVE-2016-9587?

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-2016-9587?

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

Scan your code now

Source: NVD / NIST