CVE-2003-0928: Clearswift MAILsweeper before 4.3.15 does not properly detect and filter RAR 3.20 encoded files, which allows

Q: How do I fix CVE-2003-0928?

mailsweeper: upgrade to newer than 4.3.15. Exact commands for each OS are on this page.

Q: Is CVE-2003-0928 being exploited?

CVE-2003-0928 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2003-0928 affect?

CVE-2003-0928 affects mailsweeper. Severity is high (CVSS 7.5). Clearswift MAILsweeper before 4.3.15 does not properly detect and filter RAR 3.20 encoded files, which allows remote attackers to bypass intended policy.

This month

HIGH 7.5UPGRADE

CVE-2003-0928 is a high-severity flaw (CVSS 7.5) affecting mailsweeper. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Clearswift MAILsweeper before 4.3.15 does not properly detect and filter RAR 3.20 encoded files, which allows remote attackers to bypass intended policy.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Published	2004-09-28
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: clearswift

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2004-09-28 04:00 UTCPublished CVE record published
2026-06-16 22:03 UTCUpdated Record last modified

clearswift mailsweeper UPGRADE

Affected: <= 4.3.15

Fixed in: newer than 4.3.15

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy mailsweeper || rpm -q mailsweeper || mailsweeper --version

2. UPGRADE to newer than 4.3.15 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade mailsweeper

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mailsweeper

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2003-0928?

mailsweeper: upgrade to newer than 4.3.15. Exact commands for each OS are on this page.

Is CVE-2003-0928 being exploited?

CVE-2003-0928 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2003-0928 affect?

CVE-2003-0928 affects mailsweeper. Severity is high (CVSS 7.5). Clearswift MAILsweeper before 4.3.15 does not properly detect and filter RAR 3.20 encoded files, which allows remote attackers to bypass intended policy.

How urgent is CVE-2003-0928?

Priority 45/100. High severity

Related CVEs

CVE-2004-2328 MEDIUM 5.0 DOWNGRADE Clearswift MAILsweeper for SMTP before 4.3_13 allows remote attackers to cause a denial of service (infinite l
CVE-2004-0235 MEDIUM 6.4 DOWNGRADE DOWNGRADE Multiple directory traversal vulnerabilities in LHA 1.14 allow remote attackers or local users to create arbit
CVE-2004-0234 HIGH 10.0 DOWNGRADE DOWNGRADE Multiple stack-based buffer overflows in the get_header function in header.c for LHA 1.14, as used in products
CVE-2004-0162 HIGH 7.5 DOWNGRADE DOWNGRADE Multiple content security gateway and antivirus products allow remote attackers to bypass content restrictions
CVE-2004-0161 HIGH 7.5 DOWNGRADE DOWNGRADE Multiple content security gateway and antivirus products allow remote attackers to bypass content restrictions

References

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