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CVE-2009-1574

31
FAUCET Score

CVE-2009-1574 describes a denial-of-service vulnerability in ipsec-tools versions prior to 0.7.2, specifically within the racoon/isakmp_frag.c component. Remote attackers can trigger a NULL pointer dereference by sending specially crafted fragmented packets lacking a payload, leading to a system crash. This vulnerability has a CVSS score of 5.0, indicating a medium severity, with an attack vector of network, low attack complexity, and potential for partial availability impact. While not present in the CISA KEV catalog or currently on any "Hot List," a Proof-of-Concept exploit is publicly available on ExploitDB. Community discussion and media coverage for this CVE are minimal, aligning with typical trends for a large percentage of vulnerabilities.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.7.1CPE matchmatch criteria
cpe:2.3:a:ipsec-tools:ipsec-tools:*:*:*:*:*:*:*:*
0.1CPE matchmatch criteria
cpe:2.3:a:ipsec-tools:ipsec-tools:0.1:*:*:*:*:*:*:*
0.2CPE matchmatch criteria
cpe:2.3:a:ipsec-tools:ipsec-tools:0.2:*:*:*:*:*:*:*
0.2.1CPE matchmatch criteria
cpe:2.3:a:ipsec-tools:ipsec-tools:0.2.1:*:*:*:*:*:*:*
0.2.2CPE matchmatch criteria
cpe:2.3:a:ipsec-tools:ipsec-tools:0.2.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
11.63%
Probability of exploitation in next 30 days
EPSS Percentile
95.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-8669 · May 13, 2009
This CVE's current EPSS score of 0.1163 is in the 95th percentile among its peer group of 23,690 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: ipsec-tools-0:0.6.5-13.el5_3.1
View patch

Vendor Advisories (1)

redhatCVE-2009-1574Important

ipsec-tools: racoon NULL dereference in fragmentation code

Apr 22, 2009

References

kb.juniper.net / InfoCenter/index
lists.apple.com / archives/security-announce/2009/Nov/msg00000.html
lists.apple.com / archives/security-announce/2010//Dec/msg00001.html
lists.opensuse.org / opensuse-security-announce/2009-07/msg00002.html
bugzilla.redhat.com / show_bug.cgi
ExploitPatch
secunia.com / advisories/35113
secunia.com / advisories/35153
secunia.com / advisories/35159
secunia.com / advisories/35212
secunia.com / advisories/35404
secunia.com / advisories/35685
security.gentoo.org / glsa/glsa-200905-03.xml
exchange.xforce.ibmcloud.com / vulnerabilities/50412
sourceforge.net / project/shownotes.php
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9624
support.apple.com / kb/HT3937
support.apple.com / kb/HT4298
redhat.com / archives/fedora-package-announce/2009-May/msg00725.html
redhat.com / archives/fedora-package-announce/2009-May/msg00746.html
redhat.com / archives/fedora-package-announce/2009-May/msg00789.html
debian.org / security/2009/dsa-1804
mandriva.com / security/advisories
openwall.com / lists/oss-security/2009/04/29/6
Patch
openwall.com / lists/oss-security/2009/05/04/3
Patch
redhat.com / support/errata/RHSA-2009-1036.html
securityfocus.com / bid/34765
ubuntu.com / usn/USN-785-1
vupen.com / english/advisories/2009/3184