Is CVE-2006-4364 in the CISA KEV catalog?

No. CVE-2006-4364 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2006-4364?

CVE-2006-4364 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2006-4364?

CVE-2006-4364 has an EPSS score of 54.62% (99th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2006-4364

MEDIUMEPSS 99th pctl

5.0

CVSS v2

NVD

Description

Multiple heap-based buffer overflows in the POP3 server in Alt-N Technologies MDaemon before 9.0.6 allow remote attackers to cause a denial of service (daemon crash) and possibly execute arbitrary code via long strings that contain '@' characters in the (1) USER and (2) APOP commands.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

54.62%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

http://files.altn.com/MDaemon/Release/RelNotes_en.txt
http://secunia.com/advisories/21595
http://securityreason.com/securityalert/1446
http://securitytracker.com/id?1016729
http://www.infigo.hr/en/in_focus/advisories/INFIGO-2006-08-04
http://www.osvdb.org/28125
http://www.securityfocus.com/archive/1/444015/100/0/threaded
http://www.securityfocus.com/bid/19651
http://www.vupen.com/english/advisories/2006/3361
https://exchange.xforce.ibmcloud.com/vulnerabilities/28517
https://www.exploit-db.com/exploits/2245

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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 2026-04-16.