Description
Buffer overflow in the base64 decoder in MERCUR Mailserver 4.2 before SP3a allows remote attackers to cause a denial of service and possibly execute arbitrary code via a long (1) AUTH command to the POP3 server or (2) AUTHENTICATE command to the IMAP server.
Exploits (1)
exploitdb
WORKING POC
VERIFIED
by Kostya KORTCHINSKY · textdoswindows
https://www.exploit-db.com/exploits/23267
References (8)
Core 8
Core References
Exploit vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/8861
Patch third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/10038
Exploit vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/8889
Third Party Advisory, VDB Entry vdb-entry
x_refsource_osvdb
http://www.osvdb.org/2688
Exploit mailing-list
x_refsource_fulldisc
http://archives.neohapsis.com/archives/fulldisclosure/2003-q4/1459.html
Third Party Advisory, VDB Entry vdb-entry
x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/13468
Various Sources x_refsource_confirm
http://www.atrium-software.com/mail%20server/pub/mcr42sp3a.html
Exploit x_refsource_misc
http://www.securiteam.com/windowsntfocus/6U00N1P8KC.html
Scores
EPSS
0.2325
EPSS Percentile
96.0%
Details
Status
published
Products (8)
atrium_software/mercur_mailserver
3.3
atrium_software/mercur_mailserver
3.3_sp1
atrium_software/mercur_mailserver
3.3_sp2
atrium_software/mercur_mailserver
4.1
atrium_software/mercur_mailserver
4.1_sp1
atrium_software/mercur_mailserver
4.2
atrium_software/mercur_mailserver
4.2_sp1
atrium_software/mercur_mailserver
4.2_sp2
Published
Dec 31, 2003
Tracked Since
Feb 18, 2026