CVE-2011-2717

Dhcp6c vulnerability

CVSS

9.8

EPSS

3.9%

EPSS pct

89th

Exploited

No known

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 vendor

Linux

Affected product

Dhcp6c

CVSS vector

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

Weakness type (CWE)

CWE-74 — Injection

Published

2019-11-27

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2011-2717

Confirm whether Linux Dhcp6c is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2011-2717.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2011-2717

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2011-2717 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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