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CVE-2003-1557

21
FAUCET Score

CVE-2003-1557 describes an off-by-one buffer overflow in the spamc component of SpamAssassin versions 2.40 through 2.43 when operating in BSMTP mode. This vulnerability allows remote attackers to execute arbitrary code by crafting email headers with leading dot characters. The CVSS score of 7.6 indicates high severity, with a network attack vector, high attack complexity, and complete compromise of confidentiality, integrity, and availability. Despite its age and severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.40CPE matchmatch criteria
cpe:2.3:a:spamassassin:spamassassin:2.40:*:*:*:*:*:*:*
2.41CPE matchmatch criteria
cpe:2.3:a:spamassassin:spamassassin:2.41:*:*:*:*:*:*:*
2.42CPE matchmatch criteria
cpe:2.3:a:spamassassin:spamassassin:2.42:*:*:*:*:*:*:*
2.43CPE matchmatch criteria
cpe:2.3:a:spamassassin:spamassassin:2.43:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.6HIGH

AV:N/AC:H/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.56%
Probability of exploitation in next 30 days
EPSS Percentile
90.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0456 is in the 56th percentile among its peer group of 8,914 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2003-1557

CVE-2003-1557

References

marc.info
secunia.com / advisories/7983
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/11154
securityfocus.com / archive/1/309912/30/26090/threaded
securityfocus.com / archive/1/310212/30/26030/threaded
securityfocus.com / bid/6679
Patch