How severe is CVE-2001-0053?

CVE-2001-0053 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2001-0053 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0053?

CVE-2001-0053 primarily affects David Madore Ftpd-bsd. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2001-0053?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2001-0053 published?

CVE-2001-0053 was published on 2001-02-12 and last updated on 2026-06-16.

CVE-2001-0053

CVE-2001-0053 is a critical-severity vulnerability in David Madore Ftpd-bsd with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 18% places it in the 97th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 18% (97th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: David Madore Ftpd-bsd
Published: 2001-02-12
Last modified: 2026-06-16

Description

One-byte buffer overflow in replydirname function in BSD-based ftpd allows remote attackers to gain root privileges.

Frequently asked questions

What is CVE-2001-0053?: One-byte buffer overflow in replydirname function in BSD-based ftpd allows remote attackers to gain root privileges.
How severe is CVE-2001-0053?: CVE-2001-0053 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2001-0053 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0053?: CVE-2001-0053 primarily affects David Madore Ftpd-bsd. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2001-0053?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2001-0053 published?: CVE-2001-0053 was published on 2001-02-12 and last updated on 2026-06-16.

References

Affected products (10)

cpe:2.3:a:david_madore:ftpd-bsd:0.2.3:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:1.4:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:1.4.1:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:1.4.2:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:1.5:*:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:2.4:*:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:2.5:*:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:2.6:*:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:2.7:*:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:2.8:*:*:*:*:*:*:*

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