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CVE Record

CVE-2011-2717: The DHCPv6 client (dhcp6c) as used in the dhcpv6 project through 2011-07-25 allows remote DHCP servers to e...

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.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2011-2717 is a command-injection flaw in the dhcpv6 project's DHCPv6 client, dhcp6c. A malicious or compromised DHCPv6 server could place shell metacharacters in a hostname value and cause the client to run arbitrary commands. The public bundle does not provide a CVSS score or evidence of active exploitation.

Executive priority

Prioritize legacy and network-adjacent systems that still rely on dhcp6c. The issue can permit command execution, but urgency is moderated by limited public evidence, unknown scoring, and dependence on DHCPv6 client exposure to a malicious server.

Technical view

dhcp6c, as used in the dhcpv6 project through 2011-07-25, mishandles a hostname obtained from a DHCP message. If that value contains shell metacharacters, a remote DHCP server can trigger arbitrary command execution on the client side. The sources do not define affected downstream packages, privilege context, or a specific fixed release.

Likely exposure

Exposure is most likely on systems still running the dhcpv6 project's dhcp6c from versions through 2011-07-25. Risk depends on whether DHCPv6 is enabled and whether an untrusted, rogue, or compromised DHCPv6 server can supply client configuration.

Exploitation context

The provided sources support remote command execution by a DHCP server through crafted hostname data. They do not show CISA KEV listing, known public exploitation, exploit availability, or observed attacks. Treat exploitation status as unconfirmed based on this bundle.

Researcher notes

The record is sparse: no CVSS, CWE, patch version, or downstream package matrix is present. Analysis should stay tied to dhcpv6 project dhcp6c through 2011-07-25 and the documented hostname shell-metacharacter injection path.

Mitigation direction

  • Identify systems using dhcp6c from the dhcpv6 project.
  • Check vendor advisories for fixed packages or replacement guidance.
  • Disable DHCPv6 where it is unnecessary.
  • Restrict DHCPv6 service to trusted network segments.
  • Monitor for unauthorized DHCPv6 servers on managed networks.

Validation and detection

  • Inventory DHCPv6 clients and confirm whether dhcp6c is present.
  • Confirm package provenance and version against vendor guidance.
  • Review whether DHCPv6 is enabled on exposed interfaces.
  • Check network controls for rogue DHCPv6 server prevention.
  • Review logs for unexpected DHCPv6 configuration changes.
Prepared
Confidence
medium
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2011-2717 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
dhcpv6 projectdhcpv6through 2011-07-25Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.