What’s Vulnerable › Vulnerabilities

CVE-2003-1177

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 12.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2003-12-31 · updated 2026-06-16

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.

Affected products

• Atrium Software Mercur Mailserver: 3.3, 3.3_sp1, 3.3_sp2, 4.1, 4.1_sp1, 4.2 (+2)

References

• http://archives.neohapsis.com/archives/fulldisclosure/2003-q4/1459.html
• http://secunia.com/advisories/10038
• http://www.atrium-software.com/mail%20server/pub/mcr42sp3a.html
• http://www.osvdb.org/2688
• http://www.securiteam.com/windowsntfocus/6U00N1P8KC.html
• http://www.securityfocus.com/bid/8861
• http://www.securityfocus.com/bid/8889
• https://exchange.xforce.ibmcloud.com/vulnerabilities/13468
• http://archives.neohapsis.com/archives/fulldisclosure/2003-q4/1459.html
• http://secunia.com/advisories/10038
• http://www.atrium-software.com/mail%20server/pub/mcr42sp3a.html
• http://www.osvdb.org/2688

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