CVE-2011-2716

CVE-2011-2716 is a medium-severity vulnerability in Busybox with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

• Severity: Medium (CVSS 2.0 base score 6.8)
• EPSS exploit prediction: 2% (76th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-20
• Affected product: Busybox
• Published: 2012-07-03
• Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is CVE-2011-2716?

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.

How severe is CVE-2011-2716?

CVE-2011-2716 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2011-2716 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-2716?

CVE-2011-2716 primarily affects Busybox. In total, 92 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-2716?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-2716 published?

CVE-2011-2716 was published on 2012-07-03 and last updated on 2026-06-16.

References

• http://downloads.avaya.com/css/P8/documents/100158840
• http://packetstormsecurity.com/files/153278/WAGO-852-Industrial-Managed-Switch-Series-Code-Execution-Hardcoded-Credentials.html
• http://rhn.redhat.com/errata/RHSA-2012-0810.html
• http://seclists.org/fulldisclosure/2019/Jun/18
• http://seclists.org/fulldisclosure/2020/Aug/20
• http://secunia.com/advisories/45363
• http://www.busybox.net/news.html
• http://www.mandriva.com/security/advisories?name=MDVSA-2012:129
• http://www.securityfocus.com/bid/48879
• https://bugs.busybox.net/show_bug.cgi?id=3979
• https://seclists.org/bugtraq/2019/Jun/14
• https://support.t-mobile.com/docs/DOC-21994

Affected products (92)

• cpe:2.3:o:t-mobile:tm-ac1900:3.0.0.4.376_3169:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:*:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:0.60.5:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.00:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.0.0:pre1:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.0.0:pre10:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.0.0:pre2:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.0.0:pre3:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.0.0:pre4:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.0.0:pre5:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.0.0:pre6:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.0.0:pre7:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.0.0:pre8:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.0.0:pre9:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.0.0:rc1:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.0.0:rc2:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.0.0:rc3:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.01:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.1.0:pre1:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.1.3:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.2.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.3.2:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.4.2:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.5.0:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.6.0:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.6.1:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.7.0:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:busybox:busybox:1.7.2:*:*:*:*:*:*:*

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