What’s Vulnerable › Vulnerabilities

CVE-2011-2717

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-11-27 · updated 2026-06-16
• Weakness: CWE-74

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.

Affected products

• Linux Dhcp6C: through 2011-07-25
• Red Hat Enterprise Linux: 4.0, 5.0

References

• https://access.redhat.com/security/cve/cve-2011-2717
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-2717
• https://vigilance.fr/vulnerability/dhcp6c-shell-command-injection-10869
• https://www.openwall.com/lists/oss-security/2011/07/26/9
• https://access.redhat.com/security/cve/cve-2011-2717
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-2717
• https://vigilance.fr/vulnerability/dhcp6c-shell-command-injection-10869
• https://www.openwall.com/lists/oss-security/2011/07/26/9

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