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CVE-2011-4868

MEDIUM · CVSS 6.1EPSS 3.4%EU EUVD

The logging functionality in dhcpd in ISC DHCP before 4.2.3-P2, when using Dynamic DNS (DDNS) and issuing IPv6 addresses, does not properly handle the DHCPv6 lease structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via crafted packets related to a lease-status update.

Key facts

CVSS score
6.1 (v2.0)
Severity
MEDIUM
CVSS vector
AV:A/AC:L/Au:N/C:N/I:N/A:C
Weakness (CWE)
CWE-399
EPSS score
3.4% (89th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2011-4785)
Published
January 15, 2012
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-4785 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp
  • isc / dhcp

and 52 more…

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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