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Unrated severityNVD Advisory· Published Dec 31, 2001· Updated Jun 16, 2026

CVE-2001-1581

CVE-2001-1581

Description

The File Blocker feature in Clearswift MAILsweeper for SMTP 4.2 allows remote attackers to bypass e-mail attachment filtering policies via a modified name in a Content-Type header.

Affected products

2
  • Clearswift/Mailsweeper2 versions
    cpe:2.3:a:clearswift_limited:mailsweeper:4.2:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:clearswift_limited:mailsweeper:4.2:*:*:*:*:*:*:*
    • (no CPE)range: =4.2

Patches

Vulnerability mechanics

References

2

News mentions

0

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