CVE-2012-3570

Buffer overflow in ISC DHCP 4.2.x before 4.2.4-P1, when DHCPv6 mode is enabled, allows remote attackers to cause a denial of service (segmentation fault and daemon exit) via a crafted client identifier parameter.

Published: 2012-07-25 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-3570 is rated Moderate Risk (50.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.57%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2012-3570

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 3.68% 2.57% -1.11%
2 2026-03-26 4.05% 3.68% -0.37%
3 2025-03-30 — 4.05% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-3570

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.7 2.0 MEDIUM
AV:A/AC:M/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:A)
Requires access to an adjacent network segment.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 5.5 6.9 [email protected]

Weakness enumeration for CVE-2012-3570

OS Trackers for CVE-2012-3570

vendor priority summary link
debian not yet assigned CVE-2012-3570 not yet assigned priority: Debian including 1 source packages (isc-dhcp), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): resolved 4. https://security-tracker.debian.org/tracker/CVE-2012-3570
gentoo normal CVE-2012-3570: 1 GLSA(s) (201301-06), 1 atom(s) (net-misc/dhcp); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2012-3570
redhat medium — https://access.redhat.com/security/cve/CVE-2012-3570
suse medium CVE-2012-3570 severity moderate: SUSE including 57 source package names (dhcp-4.2.4.P1-0.5.1, dhcp-4.2.4.P2-0.16.15, …), 95 product×package rows across 36 product lines (SUSE Linux Enterprise Desktop 11 SP2, SUSE Linux Enterprise Desktop 12, … (36 product lines)): Fixed 95. https://www.suse.com/security/cve/CVE-2012-3570/
ubuntu medium CVE-2012-3570 medium priority: Ubuntu including 2 source packages (dhcp3, isc-dhcp), 12 status rows across 6 suites (hardy, lucid, natty, oneiric, precise, upstream): DNE 5, not-affected 5, needs-triage 2. https://ubuntu.com/security/CVE-2012-3570

Affected software / configurations for CVE-2012-3570

Vendor Product Version Raw CPE
isc dhcp 4.2.0 cpe:2.3:a:isc:dhcp:4.2.0:*:*:*:*:*:*:*
isc dhcp 4.2.0 cpe:2.3:a:isc:dhcp:4.2.0:a1:*:*:*:*:*:*
isc dhcp 4.2.0 cpe:2.3:a:isc:dhcp:4.2.0:a2:*:*:*:*:*:*
isc dhcp 4.2.0 cpe:2.3:a:isc:dhcp:4.2.0:b1:*:*:*:*:*:*
isc dhcp 4.2.0 cpe:2.3:a:isc:dhcp:4.2.0:b2:*:*:*:*:*:*
isc dhcp 4.2.0 cpe:2.3:a:isc:dhcp:4.2.0:p1:*:*:*:*:*:*
isc dhcp 4.2.0 cpe:2.3:a:isc:dhcp:4.2.0:rc1:*:*:*:*:*:*
isc dhcp 4.2.1 cpe:2.3:a:isc:dhcp:4.2.1:*:*:*:*:*:*:*
isc dhcp 4.2.1 cpe:2.3:a:isc:dhcp:4.2.1:b1:*:*:*:*:*:*
isc dhcp 4.2.1 cpe:2.3:a:isc:dhcp:4.2.1:rc1:*:*:*:*:*:*
isc dhcp 4.2.2 cpe:2.3:a:isc:dhcp:4.2.2:*:*:*:*:*:*:*
isc dhcp 4.2.2 cpe:2.3:a:isc:dhcp:4.2.2:b1:*:*:*:*:*:*
isc dhcp 4.2.2 cpe:2.3:a:isc:dhcp:4.2.2:rc1:*:*:*:*:*:*
isc dhcp 4.2.3 cpe:2.3:a:isc:dhcp:4.2.3:*:*:*:*:*:*:*
isc dhcp 4.2.3 cpe:2.3:a:isc:dhcp:4.2.3:p1:*:*:*:*:*:*
isc dhcp 4.2.3 cpe:2.3:a:isc:dhcp:4.2.3:p2:*:*:*:*:*:*
isc dhcp 4.2.4 cpe:2.3:a:isc:dhcp:4.2.4:*:*:*:*:*:*:*

References for CVE-2012-3570

cvelogic Threat Intelligence