CVE-2011-2717

Name: CVE-2011-2717
Creator: NVD / NIST
Published: 2019-11-27T21:15:12.463+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.93%

Last modified Jun 16, 2026

CVE-2011-2717 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The DHCPv6 client (dhcp6c) as used in the dhcpv6 project through 2011-07-25 allows remote DHCP servers to execute arbitrary commands via shell metacharacters in a hostname obtained from a DHCP message.. EPSS estimates a 3.93% chance of exploitation in the next 30 days.

Description

The DHCPv6 client (dhcp6c) as used in the dhcpv6 project through 2011-07-25 allows remote DHCP servers to execute arbitrary commands via shell metacharacters in a hostname obtained from a DHCP message.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

3.93%

89.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-74

Affected Software

Vendor	Product	Versions
Linux	Dhcp6c	<= 2011-07-25
Redhat	Enterprise Linux	4.0
Redhat	Enterprise Linux	5.0

References

https://access.redhat.com/security/cve/cve-2011-2717Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-2717Issue Tracking, Third Party Advisory
https://vigilance.fr/vulnerability/dhcp6c-shell-command-injection-10869Third Party Advisory
https://www.openwall.com/lists/oss-security/2011/07/26/9Mailing List, Third Party Advisory
https://access.redhat.com/security/cve/cve-2011-2717Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-2717Issue Tracking, Third Party Advisory
https://vigilance.fr/vulnerability/dhcp6c-shell-command-injection-10869Third Party Advisory
https://www.openwall.com/lists/oss-security/2011/07/26/9Mailing List, Third Party Advisory

Timeline

Published: Nov 27, 2019
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-2717?

How severe is CVE-2011-2717?

CVE-2011-2717 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.93% probability of exploitation in the next 30 days.

How do I fix CVE-2011-2717?

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-2011-2717?

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

Scan your code now

Source: NVD / NIST