CVE-2006-5487: Directory traversal vulnerability in Marshal MailMarshal SMTP 5.x, 6.x, and 2006, and MailMarshal for Exchange

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HIGH 10.0DOWNGRADE

CVE-2006-5487 is a high-severity flaw (CVSS 10.0) affecting mailmarshal smtp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in Marshal MailMarshal SMTP 5.x, 6.x, and 2006, and MailMarshal for Exchange 5.x, allows remote attackers to write arbitrary files via ".." sequences in filenames in an ARJ compressed archive.

Why this priority

Critical severity
EPSS top 9%: very likely to be exploited

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	4.0% (top 9%)
CISA exploited list	No
Weakness	CWE-22
Published	2006-11-10
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: marshal

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

Am I affected?

Timeline

2006-11-10 22:07 UTCPublished CVE record published
2026-06-16 22:31 UTCUpdated Record last modified

marshal mailmarshal smtp DOWNGRADE

Affected: 5.0 · 6.0 · 2006

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.0

1. Check installed version

apt-cache policy mailmarshal-smtp || rpm -q mailmarshal-smtp || mailmarshal-smtp --version

2. No fixed release: DOWNGRADE to a release before 5.0 (Debian / Ubuntu)

apt-cache madison mailmarshal-smtp sudo apt install mailmarshal-smtp=<VERSION_BEFORE_5.0> sudo apt-mark hold mailmarshal-smtp

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list mailmarshal-smtp sudo dnf downgrade mailmarshal-smtp-<VERSION_BEFORE_5.0> sudo dnf versionlock add mailmarshal-smtp

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2006-5487?

mailmarshal smtp: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2006-5487 being exploited?

CVE-2006-5487 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-2006-5487 affect?

CVE-2006-5487 affects mailmarshal smtp. Severity is high (CVSS 10.0). Directory traversal vulnerability in Marshal MailMarshal SMTP 5.x, 6.x, and 2006, and MailMarshal for Exchange 5.x, allows remote attackers to write arbitrary files via ".." sequences in filenames in an ARJ compressed archive.

How urgent is CVE-2006-5487?

Priority 58/100. Critical severity; EPSS top 9%: very likely to be exploited

Related CVEs

CVE-2007-3796 HIGH 7.6 UPGRADE The password reset feature in the Spam Quarantine HTTP interface for MailMarshal SMTP 6.2.0.x before 6.2.1 all

References

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