CVE-2011-2717

CRITICALNVD 9.89.8—

9.8

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 v3: 9.8
EG Score: 9.8(medium)
EPSS: 71.9%
KEV: Not listed

Published

November 27, 2019

Last Modified

November 21, 2024

References (8)

secalert@redhathttps://access.redhat.com/security/cve/cve-2011-2717
secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-2717
secalert@redhathttps://vigilance.fr/vulnerability/dhcp6c-shell-command-injection-10869
secalert@redhathttps://www.openwall.com/lists/oss-security/2011/07/26/9
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/cve-2011-2717
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-2717
af854a3a-2127-422b-91ae-364da2661108https://vigilance.fr/vulnerability/dhcp6c-shell-command-injection-10869
af854a3a-2127-422b-91ae-364da2661108https://www.openwall.com/lists/oss-security/2011/07/26/9

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

Data Freshness Timeline

(refreshed 9× in last 7d / 9× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 11:04 UTCEG score recompute
2026-05-27 11:04 UTCGHSA enrichment
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-24 16:43 UTCepss_batch

Frequently asked(5)

What is CVE-2011-2717?

CVE-2011-2717 is a critical vulnerability published on November 27, 2019. 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.

When was CVE-2011-2717 disclosed?

CVE-2011-2717 was first published in the National Vulnerability Database on November 27, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2011-2717 actively exploited?

CVE-2011-2717 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 71.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2011-2717?

CVE-2011-2717 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2011-2717?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-2717, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2011-2717

📅 Published

🔄 Last Modified

🔗 References (8)