CVE-2003-0271: Buffer overflow in Personal FTP Server allows remote attackers to execute arbitrary code via a long USER argum

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HIGH 7.5MITIGATE

CVE-2003-0271 is a high-severity flaw (CVSS 7.5) affecting personal ftp server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in Personal FTP Server allows remote attackers to execute arbitrary code via a long USER argument.

Why this priority

High severity
EPSS top 10%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	3.9% (top 10%)
CISA exploited list	No
Published	2003-05-27
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: cooolsoft

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

Am I affected?

Timeline

2003-05-27 04:00 UTCPublished CVE record published
2026-06-16 22:01 UTCUpdated Record last modified

cooolsoft personal ftp server MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy personal-ftp-server || rpm -q personal-ftp-server || personal-ftp-server --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2003-0271?

personal ftp server: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2003-0271 being exploited?

CVE-2003-0271 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-2003-0271 affect?

CVE-2003-0271 affects personal ftp server. Severity is high (CVSS 7.5). Buffer overflow in Personal FTP Server allows remote attackers to execute arbitrary code via a long USER argument.

How urgent is CVE-2003-0271?

Priority 54/100. High severity; EPSS top 10%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2002-1545 MEDIUM 5.0 DOWNGRADE CooolSoft Personal FTP Server 2.24 allows remote attackers to obtain the absolute pathname of the FTP root via
CVE-2002-1544 MEDIUM 6.4 DOWNGRADE Directory traversal vulnerability in CooolSoft Personal FTP Server 2.24 allows remote attackers to read or mod

References

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