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Vulnerability record · CVE-2009-3641 · published 28 October 2009

CVE-2009-3641: Snort vulnerability

Snort · Snort

Snort before 2.8.5.1, when the -v option is enabled, allows remote attackers to cause a denial of service (application crash) via a crafted IPv6 packet that uses the (1) TCP or (2) ICMP protocol.

4.3 CVSS 2.0 Medium EPSS 39% · top 1.5%
4.3CVSS 2.0 base score
39%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
24References, 6 tagged exploit
16 Jun 2026Last modified by NVD

Description

Snort before 2.8.5.1, when the -v option is enabled, allows remote attackers to cause a denial of service (application crash) via a crafted IPv6 packet that uses the (1) TCP or (2) ICMP protocol.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://dl.snort.org/snort-current/release_notes_2851.txt Vendor Advisory
http://marc.info/?l=oss-security&m=125649553414700&w=2
http://seclists.org/fulldisclosure/2009/Oct/299 ExploitPatch
http://secunia.com/advisories/37135 Vendor Advisory
http://securitytracker.com/id?1023076
http://vrt-sourcefire.blogspot.com/2009/10/snort-2851-release.html Patch
http://www.openwall.com/lists/oss-security/2009/10/25/5
http://www.osvdb.org/59159
http://www.securityfocus.com/bid/36795 ExploitPatch
http://www.vupen.com/english/advisories/2009/3014 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=530863 Exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/53912
http://dl.snort.org/snort-current/release_notes_2851.txt Vendor Advisory
http://marc.info/?l=oss-security&m=125649553414700&w=2
http://seclists.org/fulldisclosure/2009/Oct/299 ExploitPatch
http://secunia.com/advisories/37135 Vendor Advisory
http://securitytracker.com/id?1023076
http://vrt-sourcefire.blogspot.com/2009/10/snort-2851-release.html Patch
http://www.openwall.com/lists/oss-security/2009/10/25/5
http://www.osvdb.org/59159
http://www.securityfocus.com/bid/36795 ExploitPatch
http://www.vupen.com/english/advisories/2009/3014 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=530863 Exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/53912

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2009-3641), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.