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CRITICAL

CVE-2011-1930

CVSS v3

9.8

CRITICAL

EPSS Score

20.5 %

exploit probability, as of 2026-10-05

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

In klibc 1.5.20 and 1.5.21, the DHCP options written by ipconfig to /tmp/net-$DEVICE.conf are not properly escaped. This may allow a remote attacker to send a specially crafted DHCP reply which could execute arbitrary code with the privileges of any process which sources DHCP options.

Technical details

Published
2019-11-14
Exploit-DB
EDB-35785

Frequently asked questions

What is CVE-2011-1930?

In klibc 1.5.20 and 1.5.21, the DHCP options written by ipconfig to /tmp/net-$DEVICE.conf are not properly escaped. This may allow a remote attacker to send a specially crafted DHCP reply which could execute arbitrary code with the privileges of any process which sources DHCP options.

Is CVE-2011-1930 actively exploited?

Active exploitation of CVE-2011-1930 has not been confirmed. Its EPSS score was 20.5% on 2026-10-05, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2011-1930?

CVE-2011-1930 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2011-1930 affecting your environment?

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