CVE-2011-2717
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.93%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.93% probability · 90th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-74
- Affected
- linux/dhcp6c · redhat/enterprise linux
- Source
- secalert@redhat.com
EPSS 3.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.