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CVE-2012-3570

20
FAUCET Score

CVE-2012-3570 describes a buffer overflow vulnerability in ISC DHCP 4.2.x before 4.2.4-P1, specifically when DHCPv6 mode is enabled. An attacker can exploit this by sending a crafted client identifier parameter, leading to a denial of service through a segmentation fault and daemon exit. With a CVSS score of 5.7, this vulnerability has an adjacent network attack vector and medium attack complexity, resulting in a high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.2.0CPE matchmatch criteria
cpe:2.3:a:isc:dhcp:4.2.0:*:*:*:*:*:*:*
4.2.0CPE matchmatch criteria
cpe:2.3:a:isc:dhcp:4.2.0:a1:*:*:*:*:*:*
4.2.0CPE matchmatch criteria
cpe:2.3:a:isc:dhcp:4.2.0:a2:*:*:*:*:*:*
4.2.0CPE matchmatch criteria
cpe:2.3:a:isc:dhcp:4.2.0:b1:*:*:*:*:*:*
4.2.0CPE matchmatch criteria
cpe:2.3:a:isc:dhcp:4.2.0:b2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.7MEDIUM

AV:A/AC:M/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
ADJACENT_NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
5.5
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.57%
Probability of exploitation in next 30 days
EPSS Percentile
83.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0257 is in the 99th percentile among its peer group of 1,749 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.0 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2012-3570Moderate

dhcp: DoS in DHCPv6 due to error in handling malformed client identifiers

Jul 24, 2012

References

lists.opensuse.org / opensuse-updates/2012-08/msg00030.html
security.gentoo.org / glsa/glsa-201301-06.xml
kb.isc.org / article/AA-00714
Vendor Advisory
mandriva.com / security/advisories
securityfocus.com / bid/54665