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Vulnerability record · CVE-2005-4266 · published 15 December 2005

CVE-2005-4266: Alt-n mdaemon vulnerability

AAlt N · Mdaemon

WorldClient.dll in Alt-N MDaemon and WorldClient 8.1.3 trusts a Session parameter that contains a randomly generated session ID that is associated with a username, which allows remote attackers to perform actions as other users by guessing or sniffing the random value.

7.5 CVSS 2.0 High EPSS 1.3% · top 30.3%
7.5CVSS 2.0 base score
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
4References
16 Jun 2026Last modified by NVD

Description

WorldClient.dll in Alt-N MDaemon and WorldClient 8.1.3 trusts a Session parameter that contains a randomly generated session ID that is associated with a username, which allows remote attackers to perform actions as other users by guessing or sniffing the random value.

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

Affected products

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

References

LinkTags
http://secunia.com/advisories/17990 Vendor Advisory
http://www.ipomonis.com/advisories/mdaemon.zip
http://secunia.com/advisories/17990 Vendor Advisory
http://www.ipomonis.com/advisories/mdaemon.zip

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Related vulnerabilities

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

10.0CVE-2006-5709Alt-n mdaemon vulnerabilityUnspecified vulnerability in WorldClient in Alt-N Technologies MDaemon before 9.50 has unknown impact and attack vectors related to a "JavaScript exp…EPSS 1.6%9.0CVE-2003-1470Alt-n mdaemon memory buffer overflow vulnerabilityBuffer overflow in IMAP service in MDaemon 6.7.5 and earlier allows remote authenticated users to cause a denial of service (crash) and execute arbit…EPSS 5.0%7.5CVE-2006-5708Alt-n mdaemon uncontrolled resource consumption vulnerabilityMultiple unspecified vulnerabilities in MDaemon and WorldClient in Alt-N Technologies MDaemon before 9.50 allow attackers to cause a denial of servic…EPSS 1.0%7.5CVE-2006-2646Alt-n mdaemon vulnerabilityBuffer overflow in Alt-N MDaemon, possibly 9.0.1 and earlier, allows remote attackers to execute arbitrary code via a long A0001 argument that begins…EPSS 4.6%7.5CVE-2003-1200Alt-N MDaemon FORM2RAW.exe stack buffer overflow via From parameterFORM2RAW.exe in Alt-N MDaemon 6.5.2 through 6.8.5 contains a stack-based buffer overflow reachable through a long From parameter passed to Form2Raw.c…EPSS 65%analysed7.5CVE-2000-1020Alt-n mdaemon vulnerabilityHeap overflow in Worldclient in Mdaemon 3.1.1 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary command…EPSS 2.3%7.5CVE-2000-1021Alt-n mdaemon vulnerabilityHeap overflow in WebConfig in Mdaemon 3.1.1 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary commands …EPSS 3.8%7.2CVE-2004-2504Alt-n mdaemon vulnerabilityThe GUI in Alt-N Technologies MDaemon 7.2 and earlier, including 6.8, executes child processes such as NOTEPAD.EXE with SYSTEM privileges when users …EPSS 0.48%

Source: NIST National Vulnerability Database (record CVE-2005-4266), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.