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Fencer Intel
high 7.8

CVE-2011-0413 in the critical feed json

The DHCPv6 server in ISC DHCP 4.0.x and 4.1.x before 4.1.2-P1, 4.0-ESV and 4.1-ESV before 4.1-ESV-R1, and 4.2.x before 4.2.1b1 allows remot…

published 2011-01-31 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-0439

cvss
7.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
32.6%
EPSS 32.6% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

The DHCPv6 server in ISC DHCP 4.0.x and 4.1.x before 4.1.2-P1, 4.0-ESV and 4.1-ESV before 4.1-ESV-R1, and 4.2.x before 4.2.1b1 allows remote attackers to cause a denial of service (assertion failure and daemon crash) by sending a message over IPv6 for a declined and abandoned address.

Patch / fix

  • isc-dhcp Debian 13, Debian 12 4.1.1-P1-16

debian advisories DEBIAN-CVE-2011-0413

  • dhcp RHEL 6 12:4.1.1-12.P1.el6_0.2
  • dhclient RHEL 6 12:4.1.1-12.P1.el6_0.2

red hat advisories RHSA-2011:0256

  • dhcp openSUSE Tumbleweed 4.3.3.P1-3.1

opensuse advisories openSUSE-SU-2024:10358-1

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-2011-0413 updated cvss 3.3

dhcp: unexpected abort caused by a DHCPv6 decline message

  • Red Hat Enterprise Linux Desktop (v. 6) dhcp 4.1.1-12.P1.el6_0.2, dhclient 4.1.1-12.P1.el6_0.2 Red Hat Enterprise Linux Desktop Optional (v. 6) dhcp 4.1.1-12.P1.el6_0.2 Red Hat Enterprise Linux HPC Node (v. 6) dhcp 4.1.1-12.P1.el6_0.2, dhclient 4.1.1-12.P1.el6_0.2 Red Hat Enterprise Linux HPC Node Optional (v. 6) dhcp 4.1.1-12.P1.el6_0.2 Red Hat Enterprise Linux Server (v. 6) dhcp 4.1.1-12.P1.el6_0.2, dhclient 4.1.1-12.P1.el6_0.2 Red Hat Enterprise Linux Server Optional (v. 6) dhcp 4.1.1-12.P1.el6_0.2
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 6) dhcp 4.1.1-12.P1.el6_0.2, dhclient 4.1.1-12.P1.el6_0.2 Red Hat Enterprise Linux Workstation Optional (v. 6) dhcp 4.1.1-12.P1.el6_0.2
    fixed: vendor fix RHSA-2011:0256
  • Red Hat Enterprise Linux 4 dhcp Red Hat Enterprise Linux 5 dhcp
    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

32.58% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/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.