Is CVE-2009-3641 in the CISA KEV catalog?

No. CVE-2009-3641 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-3641?

CVE-2009-3641 has a CVSS v2 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2009-3641?

CVE-2009-3641 has an EPSS score of 38.78% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2009-3641

MEDIUMEPSS 98th pctl

4.3

CVSS v2

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.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

38.78%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

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

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-23.