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Fencer Intel
medium 6.8

CVE-2011-2716 json

The DHCP client (udhcpc) in BusyBox before 1.20.0 allows remote DHCP servers to execute arbitrary commands via shell metacharacters in the…

published 2012-07-03 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-2695

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.8%
EPSS 1.8% chance of exploitation in 30 days, percentile 78%
public exploits
0
none known

Summary

The DHCP client (udhcpc) in BusyBox before 1.20.0 allows remote DHCP servers to execute arbitrary commands via shell metacharacters in the (1) HOST_NAME, (2) DOMAIN_NAME, (3) NIS_DOMAIN, and (4) TFTP_SERVER_NAME host name options.

Patch / fix

  • busybox busybox 1.20.0
  • busybox Debian 14, Debian 13, Debian 12 1:1.20.0-3

debian advisories DEBIAN-CVE-2011-2716

  • busybox RHEL 6 1:1.15.1-15.el6
  • busybox-petitboot RHEL 6 1:1.15.1-15.el6
  • busybox RHEL 5 1:1.2.0-13.el5
  • busybox-anaconda RHEL 5 1:1.2.0-13.el5

red hat advisories RHSA-2012:0810RHSA-2012:0308

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2011-2716 updated cvss 6.8

busybox: udhcpc insufficient checking of DHCP options

  • Red Hat Enterprise Linux (v. 5 server) busybox 1.2.0-13.el5, busybox-anaconda 1.2.0-13.el5 Red Hat Enterprise Linux Desktop (v. 5 client) busybox 1.2.0-13.el5, busybox-anaconda 1.2.0-13.el5
    fixed: vendor fix RHSA-2012:0308
  • Red Hat Enterprise Linux Desktop (v. 6) busybox 1.15.1-15.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) busybox 1.15.1-15.el6, busybox-petitboot 1.15.1-15.el6 Red Hat Enterprise Linux HPC Node (v. 6) busybox 1.15.1-15.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) busybox 1.15.1-15.el6, busybox-petitboot 1.15.1-15.el6 Red Hat Enterprise Linux Server (v. 6) busybox 1.15.1-15.el6 Red Hat Enterprise Linux Server Optional (v. 6) busybox 1.15.1-15.el6, busybox-petitboot 1.15.1-15.el6
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 6) busybox 1.15.1-15.el6 Red Hat Enterprise Linux Workstation Optional (v. 6) busybox 1.15.1-15.el6, busybox-petitboot 1.15.1-15.el6
    fixed: vendor fix RHSA-2012:0810
  • Red Hat Enterprise Linux 4 busybox
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.78% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:A/AC:H/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Consolidate version ranges.