CVE-2001-0065: Buffer overflow in bftpd 1.0.13 allows remote attackers to cause a denial of service and possibly execute arbi

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HIGH 10.0DOWNGRADE

CVE-2001-0065 is a high-severity flaw (CVSS 10.0) affecting bftpd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in bftpd 1.0.13 allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long SITE CHOWN command.

Why this priority

Critical severity
EPSS top 8%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	4.8% (top 8%)
CISA exploited list	No
Published	2001-02-12
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: max-wilhelm bruker

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

Am I affected?

Timeline

2001-02-12 05:00 UTCPublished CVE record published
2026-06-16 21:53 UTCUpdated Record last modified

max-wilhelm bruker bftpd DOWNGRADE

Affected: 1.0.13

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.13

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0.13 (Debian / Ubuntu)

apt-cache madison bftpd sudo apt install bftpd=<VERSION_BEFORE_1.0.13> sudo apt-mark hold bftpd

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

dnf --showduplicates list bftpd sudo dnf downgrade bftpd-<VERSION_BEFORE_1.0.13> sudo dnf versionlock add bftpd

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-2001-0065?

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

Is CVE-2001-0065 being exploited?

CVE-2001-0065 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-2001-0065 affect?

CVE-2001-0065 affects bftpd. Severity is high (CVSS 10.0). Buffer overflow in bftpd 1.0.13 allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long SITE CHOWN command.

How urgent is CVE-2001-0065?

Priority 63/100. Critical severity; EPSS top 8%: very likely to be exploited; Public exploit reference

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References

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