CVE-2011-4868

mediumpriority · track · 25EPSS 0.034 · 89 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

3.41% (89th) EPSS

CVSS 6.1 · medium

Is it mine?

16 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

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.

cvss

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

6.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.06.1mediumAV:A/AC:L/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 6.5 · impact 6.9

v2.05.2mediumAV:A/AC:L/Au:N/C:N/I:N/A:C/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-399USprimary

affected products (16)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
isc dhcp≤ 4.2.3nvdUScpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*
isc dhcp= 3.0nvdUScpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*
isc dhcp= 3.0.1nvdUScpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*
isc dhcp= 3.0.2nvdUScpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*
isc dhcp= 3.0.3nvdUScpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*
isc dhcp= 3.0.4nvdUScpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*
isc dhcp= 3.0.5nvdUScpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*
isc dhcp= 3.0.6nvdUScpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*
isc dhcp= 3.1.0nvdUScpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*
isc dhcp= 4.0.0nvdUScpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*
isc dhcp= 4.1.0nvdUScpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*
isc dhcp= 4.2.0nvdUScpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*
isc dhcp= 4.2.1nvdUScpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*
isc dhcp= 4.2.2nvdUScpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*
isc dhcp= 4.2.3nvdUScpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2012-01-15modified 2026-06-16

related (3,726)

Related entries.

ID	severity	EPSS	exploitable	published
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CVE-2018-0156US	high7.5OT critical	9.36% (95th)	KEV	2018-03-28
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CVE-2018-0154US	high7.5OT critical	7.07% (94th)	KEV	2018-03-28
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+3721 more

references (11)

External citations — patches, advisories, analysis.

scry

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