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CVE-2007-3409

21
FAUCET Score

CVE-2007-3409 describes a denial-of-service vulnerability in the Net::DNS Perl module, versions prior to 0.60, affecting various Linux distributions. Remote attackers can exploit this by sending a specially crafted, malformed compressed DNS packet containing self-referencing pointers, leading to an infinite loop and stack consumption. With a CVSS score of 7.5 (High), this vulnerability is easily exploitable over the network with low attack complexity, resulting in a complete loss of availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.60CPE matchmatch criteria
cpe:2.3:a:net-dns:net\:\:dns:*:*:*:*:*:*:*:*
3.1CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:3.1:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*
6.06CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*
6.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:6.10:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.49%
Probability of exploitation in next 30 days
EPSS Percentile
87.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0349 is in the 79th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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 (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: perl-Net-DNS-0:0.31-4.el3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: perl-Net-DNS-0:0.59-3.el5
View patch

Vendor Advisories (1)

redhatCVE-2007-3409Moderate

Net:: DNS denial of service

Dec 22, 2006

References

patches.sgi.com / support/free/security/advisories/20070701-01-P.asc
Broken Link
osvdb.org / 37054
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rt.cpan.org / Public/Bug/Display.html
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secunia.com / advisories/25829
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secunia.com / advisories/26012
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secunia.com / advisories/26014
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secunia.com / advisories/26055
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secunia.com / advisories/26075
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secunia.com / advisories/26211
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secunia.com / advisories/26231
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secunia.com / advisories/26417
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secunia.com / advisories/26543
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secunia.com / advisories/29354
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oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10595
Broken Link
debian.org / security/2008/dsa-1515
Mailing ListThird Party Advisory
gentoo.org / security/en/glsa/glsa-200708-06.xml
Third Party Advisory
mandriva.com / security/advisories
Third Party Advisory
net-dns.org / docs/Changes.html
Release Notes
novell.com / linux/security/advisories/2007_17_sr.html
Broken Link
redhat.com / support/errata/RHSA-2007-0674.html
Broken Link
securityfocus.com / archive/1/473871/100/0/threaded
Broken LinkThird Party AdvisoryVDB Entry
securityfocus.com / bid/24669
Broken LinkThird Party AdvisoryVDB Entry
securitytracker.com / id
Broken LinkThird Party AdvisoryVDB Entry
trustix.org / errata/2007/0023
Broken Link
ubuntu.com / usn/usn-483-1
Third Party Advisory