Unrated severityNVD Advisory· Published Dec 31, 2003· Updated Apr 16, 2026

CVE-2003-1557

Description

Off-by-one buffer overflow in spamc of SpamAssassin 2.40 through 2.43, when using BSMTP mode ("-B"), allows remote attackers to execute arbitrary code via email containing headers with leading "." characters.

Affected products

Spamassassin/Spamassassin4 versions
cpe:2.3:a:spamassassin:spamassassin:2.40:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:a:spamassassin:spamassassin:2.40:*:*:*:*:*:*:*
- cpe:2.3:a:spamassassin:spamassassin:2.41:*:*:*:*:*:*:*
- cpe:2.3:a:spamassassin:spamassassin:2.42:*:*:*:*:*:*:*
- cpe:2.3:a:spamassassin:spamassassin:2.43:*:*:*:*:*:*:*

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

www.securityfocus.com/bid/6679nvdPatch
secunia.com/advisories/7983nvdVendor Advisory
marc.infonvd
www.securityfocus.com/archive/1/309912/30/26090/threadednvd
www.securityfocus.com/archive/1/310212/30/26030/threadednvd
exchange.xforce.ibmcloud.com/vulnerabilities/11154nvd

News mentions

No linked articles in our index yet.

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epss	0.009
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ransomware	0.000