CVE-2003-1327: Buffer overflow in the SockPrintf function in wu-ftpd 2.6.2 and earlier, when compiled with MAIL_ADMIN option

Q: How do I fix CVE-2003-1327?

wu-ftpd: upgrade to newer than 2.6.2. Exact commands for each OS are on this page.

Q: Is CVE-2003-1327 being exploited?

CVE-2003-1327 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-2003-1327 affect?

CVE-2003-1327 affects wu-ftpd. Severity is high (CVSS 9.3). Buffer overflow in the SockPrintf function in wu-ftpd 2.6.2 and earlier, when compiled with MAIL_ADMIN option enabled on a system that supports very long pathnames, might allow remote anonymous users to execute arbitrary code by uploading a

Q: How urgent is CVE-2003-1327?

Priority 55/100. Critical severity

This month

HIGH 9.3UPGRADE

CVE-2003-1327 is a high-severity flaw (CVSS 9.3) affecting wu-ftpd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in the SockPrintf function in wu-ftpd 2.6.2 and earlier, when compiled with MAIL_ADMIN option enabled on a system that supports very long pathnames, might allow remote anonymous users to execute arbitrary code by uploading a file with a long pathname, which triggers the overflow when wu-ftpd constructs a notification message to the administrator.

Why this priority

Critical severity

A fixed release or distro patch exists.

Risk facts

CVSS score	9.3 (High)
EPSS exploit chance	3.3% (top 12%)
CISA exploited list	No
Published	2003-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: washington university

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

Am I affected?

Timeline

2003-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:03 UTCUpdated Record last modified

washington university wu-ftpd UPGRADE

Affected: <= 2.6.2

Fixed in: newer than 2.6.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy wu-ftpd || rpm -q wu-ftpd || wu-ftpd --version

2. UPGRADE to newer than 2.6.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade wu-ftpd

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade wu-ftpd

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-2003-1327?

wu-ftpd: upgrade to newer than 2.6.2. Exact commands for each OS are on this page.

Is CVE-2003-1327 being exploited?

CVE-2003-1327 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-2003-1327 affect?

CVE-2003-1327 affects wu-ftpd. Severity is high (CVSS 9.3). Buffer overflow in the SockPrintf function in wu-ftpd 2.6.2 and earlier, when compiled with MAIL_ADMIN option enabled on a system that supports very long pathnames, might allow remote anonymous users to execute arbitrary code by uploading a

How urgent is CVE-2003-1327?

Priority 55/100. Critical severity

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References

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