Is CVE-2009-4009 in the CISA KEV catalog?

No. CVE-2009-4009 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-4009?

CVE-2009-4009 has a CVSS v2 base score of 10.0 (HIGH).

What is the EPSS score for CVE-2009-4009?

CVE-2009-4009 has an EPSS score of 17.57% (97th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2009-4009

HIGHEPSS 97th pctl

10.0

CVSS v2

NVD

Description

Buffer overflow in PowerDNS Recursor before 3.1.7.2 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via crafted packets.

CWE-119Buffer Overflow

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

17.57%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

References

http://doc.powerdns.com/powerdns-advisory-2010-01.html
http://secunia.com/advisories/38004
http://secunia.com/advisories/38068
http://securitytracker.com/id?1023403
http://www.securityfocus.com/archive/1/508743/100/0/threaded
http://www.securityfocus.com/bid/37650
http://www.vupen.com/english/advisories/2010/0054
https://bugzilla.redhat.com/show_bug.cgi?id=552285
https://exchange.xforce.ibmcloud.com/vulnerabilities/55438
https://www.redhat.com/archives/fedora-package-announce/2010-January/msg00217.html
https://www.redhat.com/archives/fedora-package-announce/2010-January/msg00228.html

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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.