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Vulnerability record · CVE-2003-1177 · published 31 December 2003

CVE-2003-1177: Atrium software mercur mailserver vulnerability

Atrium Software · Mercur Mailserver

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.

7.5 CVSS 2.0 High EPSS 13% · top 3.8%
7.5CVSS 2.0 base score
13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
16References, 8 tagged exploit
16 Jun 2026Last modified by NVD

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.

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

Affected products

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

References

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Related vulnerabilities

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

Source: NIST National Vulnerability Database (record CVE-2003-1177), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.