CVE-2006-3523: Clearswift MIMEsweeper for Web before 5.1.15 Hotfix allows remote attackers to cause a denial of service (cras

Q: How do I fix CVE-2006-3523?

mimesweeper for web: upgrade to newer than 5.1.14. Exact commands for each OS are on this page.

Q: Is CVE-2006-3523 being exploited?

CVE-2006-3523 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-2006-3523 affect?

CVE-2006-3523 affects mimesweeper for web. Severity is medium (CVSS 5.0). Clearswift MIMEsweeper for Web before 5.1.15 Hotfix allows remote attackers to cause a denial of service (crash) via an encrypted archived .RAR file, which triggers a scan error and causes the Web Policy Engine service to terminate.

Q: How urgent is CVE-2006-3523?

Priority 36/100. No elevated risk signals yet.

Routine

MEDIUM 5.0UPGRADE

CVE-2006-3523 is a medium-severity flaw (CVSS 5.0) affecting mimesweeper for web. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Clearswift MIMEsweeper for Web before 5.1.15 Hotfix allows remote attackers to cause a denial of service (crash) via an encrypted archived .RAR file, which triggers a scan error and causes the Web Policy Engine service to terminate.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Published	2006-07-12
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

2006-07-12 00:05 UTCPublished CVE record published
2026-06-16 22:27 UTCUpdated Record last modified

clearswift mimesweeper for web UPGRADE

Affected: <= 5.1.14

Fixed in: newer than 5.1.14

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy mimesweeper-for-web || rpm -q mimesweeper-for-web || mimesweeper-for-web --version

2. UPGRADE to newer than 5.1.14 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade mimesweeper-for-web

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mimesweeper-for-web

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-2006-3523?

mimesweeper for web: upgrade to newer than 5.1.14. Exact commands for each OS are on this page.

Is CVE-2006-3523 being exploited?

CVE-2006-3523 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-2006-3523 affect?

CVE-2006-3523 affects mimesweeper for web. Severity is medium (CVSS 5.0). Clearswift MIMEsweeper for Web before 5.1.15 Hotfix allows remote attackers to cause a denial of service (crash) via an encrypted archived .RAR file, which triggers a scan error and causes the Web Policy Engine service to terminate.

How urgent is CVE-2006-3523?

Priority 36/100. No elevated risk signals yet.

Related CVEs

CVE-2006-3522 MEDIUM 4.3 UPGRADE Cross-site scripting (XSS) vulnerability in Clearswift MIMEsweeper for Web before 5.1.15 Hotfix allows remote
CVE-2005-4526 MEDIUM 5.0 DOWNGRADE Clearswift MIMEsweeper For Web (a.k.a
CVE-2004-2703 MEDIUM 4.3 MITIGATE MITIGATE Clearswift MIMEsweeper 5.0.5, when it has been upgraded from MAILsweeper for SMTP version 4.3 or MAILsweeper B
CVE-2004-1715 MEDIUM 5.0 DOWNGRADE Directory traversal vulnerability in MIMEsweeper for Web before 5.0.4 allows remote attackers or local users t

References

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