CVE-2011-2717

9.8 CRITICAL 4% exploit odds No fix listed Code execution

What it is

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.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
Exploit odds: 3.9% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2011-07-11 00:00 UTC ReservedThe CVE id was reserved by its CNA
2019-11-27 21:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 23:31 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 3.9% in the next 30 days (EPSS).
Severity: 9.8 CRITICAL (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2019-11-27 21:15 UTC
Last modified: 2026-06-16 23:31 UTC
Exploit probability: 3.9% · EPSS, next 30 days
Weakness: CWE-74
Record status: Modified

Affected

Linux dhcp6c ≤ 2011-07-25
Redhat Enterprise Linux 4.0
Redhat Enterprise Linux 5.0

Attack profile CVSS 3.1 · 9.8

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Raw vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2011-2717.md and follow it. Check whether this project is affected by CVE-2011-2717. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record