CVE-2011-1930

highpriority · attend · 56EPSS 0.205 · 98 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · functional

Likely / severe?

20.5% (98th) EPSS

CVSS 10 · high

Is it mine?

6 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 9.3–10

v2.010highAV:N/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 10 · impact 10

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.3criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-117USLLM-inferredCWE-94USLLM-inferred

exploits (1)

Public proof-of-concept and weaponised exploit code.

EDB-35785klibc 1.5.2 - DHCP Options Processing Remote Shell Command Executionfunctional · exploit_db

affected products (6)

Products and version ranges known to be affected.

klibc klibc≤ 1.5.21enisa_euvdEU
klibc klibc≤ 1.5.20enisa_euvdEU
debian debian linux= 10.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
debian debian linux= 8.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
debian debian linux= 9.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
klibc project klibc< 1.5.25nvdUScpe:2.3:a:klibc_project:klibc:*:*:*:*:*:*:*:*

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2019-11-14modified 2026-06-16

references (10)

External citations — patches, advisories, analysis.

http://security.gentoo.org/glsa/glsa-201309-21.xml enisa_euvd
http://www.openwall.com/lists/oss-security/2012/05/22/12 enisa_euvd
http://www.securityfocus.com/bid/47924 enisa_euvd
https://access.redhat.com/security/cve/cve-2011-1930 enisa_euvd
https://security-tracker.debian.org/tracker/CVE-2011-1930 enisa_euvd
http://security.gentoo.org/glsa/glsa-201309-21.xmlThird Party Advisorynvd
http://www.openwall.com/lists/oss-security/2012/05/22/12Mailing ListThird Party Advisorynvd
http://www.securityfocus.com/bid/47924Third Party AdvisoryVDB Entrynvd

scry

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