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CVE-2012-3955

Published: Sep 14, 2012Updated: Apr 29, 2026 Sources: CVE List NVD BDUNVD-CWE-noinfo
NVD MITRE
7.1CVSSHIGH
EPSS Score
21.7%
Top 2.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

ISC DHCP 4.1.x before 4.1-ESV-R7 and 4.2.x before 4.2.4-P2 allows remote attackers to cause a denial of service (daemon crash) in opportunistic circumstances by establishing an IPv6 lease in an environment where the lease expiration time is later reduced.

CVSS Vector Breakdown

AV:NAC:MAu:NC:NI:NA:C
Exploitability
AV:NAccess Vector
Network
AC:MAccess Complexity
Medium
Au:NAuthentication
None
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:CAvailability
Complete
Open in CVSS calculator →

Weaknesses

NVD-CWE-noinfo

Affected Products

dhcpiscNetworking Infrastructure
debian linuxdebian
On-premOS
Operating Systems / linux-distro
ubuntu linuxcanonical
On-premOS
Operating Systems / linux-distro
n/an/a
Gentoo LinuxGentoo Foundation Inc.
On-premOS
Operating Systems / linux-distro
isccommercialUSNetworking Infrastructureaka internet systems consortium
debianoss-projectGBOperating Systemsaka debian gnu/linux
canonicalcommercialGBOperating Systemsaka canonical ltd.
gentoo foundation inc.oss-projectUSOperating Systems

Exploitability

Official Patch Available

References

http://lists.fedoraproject.org/pipermail/package-announce/2012-October/088882.html
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2012-September/086992.html
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2012-September/088220.html
lists.fedoraproject.org
and 13 more references View all →

Timeline

Published
Sep 14, 2012
Last Updated
Apr 29, 2026

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