HOMEVULNERABILITIESCVE-2011-2717
CRITICAL

CVE-2011-2717

CWE-74Published: November 27, 2019· Updated: Jun 16, 2026

9.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2011-2717 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Linux1 product(s)
dhcp6c
Red Hat1 product(s)
enterprise linux
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

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

All References (8)

→
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

Quick Facts

CVE IDCVE-2011-2717
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-74
CISA KEVNo
Affected2 vendor(s)
PublishedNov 27, 2019

Related CVEs (CWE-74)

CVE-2026-4963
10.0
CVE-2020-26282
10.0
CVE-2022-24760
10.0
CVE-2014-8423
10.0
CVE-2025-20265
10.0
CVE-2026-25520
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2011-2717 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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