CVE-2006-4364

5.0 MEDIUM 57% exploit odds Fix listed Memory safety Server

What it is

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.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 57.3% chance of exploitation in the next 30 days (EPSS). Higher than most.
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2006-08-27 02:04 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 22:28 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 57.3% in the next 30 days (EPSS).
Severity: 5.0 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2006-08-27 02:04 UTC
Last modified: 2026-06-16 22:28 UTC
Exploit probability: 57.3% · EPSS, next 30 days
Record status: Modified

Affected

alt-n Mdaemon 2.8
alt-n Mdaemon 2.8.5.0
alt-n Mdaemon 2.71_sp1
alt-n Mdaemon 3.0.3
alt-n Mdaemon 3.0.4
alt-n Mdaemon 3.1.1
alt-n Mdaemon 3.1.2
alt-n Mdaemon 3.1_beta

Attack profile CVSS 2.0 · 5.0

Attack vector: Network
Complexity: Low
Authentication: None
Confidentiality: None
Integrity: None
Availability: Partial

Raw vector

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

Is it in your code?

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Fix and advisories

References

NVD record · CVE.org record