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CVE-2012-3954

17
FAUCET Score

CVE-2012-3954 describes multiple memory leaks in ISC DHCP versions 4.1.x and 4.2.x before specific patch levels, affecting various Canonical and Debian Linux distributions. A remote attacker can exploit this by sending numerous requests, leading to memory consumption and a denial of service. The vulnerability has a low severity CVSS score of 3.3, indicating an adjacent network attack vector with low complexity and potential for partial availability impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage for this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.1.0CPE matchmatch criteria
cpe:2.3:a:isc:dhcp:4.1.0:-:*:*:*:*:*:*
4.1.0CPE matchmatch criteria
cpe:2.3:a:isc:dhcp:4.1.0:a1:*:*:*:*:*:*
4.1.0CPE matchmatch criteria
cpe:2.3:a:isc:dhcp:4.1.0:a2:*:*:*:*:*:*
4.1.0CPE matchmatch criteria
cpe:2.3:a:isc:dhcp:4.1.0:b1:*:*:*:*:*:*
4.1.1CPE matchmatch criteria
cpe:2.3:a:isc:dhcp:4.1.1:-:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

3.3LOW

AV:A/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
6.5
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.33%
Probability of exploitation in next 30 days
EPSS Percentile
90.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0433 is in the 95th percentile among its peer group of 94 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

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: dhcp-12:4.1.1-31.P1.el6_3.1
View patch

Vendor Advisories (1)

redhatCVE-2012-3954Moderate

dhcp: two memory leaks may result in DoS

Jul 24, 2012

References

lists.opensuse.org / opensuse-updates/2012-08/msg00030.html
Mailing ListThird Party Advisory
rhn.redhat.com / errata/RHSA-2012-1141.html
Third Party Advisory
security.gentoo.org / glsa/glsa-201301-06.xml
Third Party Advisory
kb.isc.org / article/AA-00737
Vendor Advisory
debian.org / security/2012/dsa-2516
Third Party Advisory
debian.org / security/2012/dsa-2519
Third Party Advisory
mandriva.com / security/advisories
Third Party Advisory
mandriva.com / security/advisories
Third Party Advisory
securityfocus.com / bid/54665
Third Party AdvisoryVDB Entry
securitytracker.com / id
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-1519-1
Third Party Advisory