How severe is CVE-1999-0911?

CVE-1999-0911 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-1999-0911 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 38% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-0911?

CVE-1999-0911 primarily affects Proftpd Project Proftpd. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-1999-0911?

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-1999-0911 published?

CVE-1999-0911 was published on 1999-08-27 and last updated on 2026-06-16.

CVE-1999-0911

CVE-1999-0911 is a critical-severity vulnerability in Proftpd Project Proftpd with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 38% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 38% (98th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Proftpd Project Proftpd
Published: 1999-08-27
Last modified: 2026-06-16

Description

Buffer overflow in ProFTPD, wu-ftpd, and beroftpd allows remote attackers to gain root access via a series of MKD and CWD commands that create nested directories.

Frequently asked questions

What is CVE-1999-0911?: Buffer overflow in ProFTPD, wu-ftpd, and beroftpd allows remote attackers to gain root access via a series of MKD and CWD commands that create nested directories.
How severe is CVE-1999-0911?: CVE-1999-0911 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-1999-0911 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 38% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0911?: CVE-1999-0911 primarily affects Proftpd Project Proftpd. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-1999-0911?: 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-1999-0911 published?: CVE-1999-0911 was published on 1999-08-27 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:a:proftpd_project:proftpd:1.2_pre1:*:*:*:*:*:*:*
cpe:2.3:a:proftpd_project:proftpd:1.2_pre2:*:*:*:*:*:*:*
cpe:2.3:a:proftpd_project:proftpd:1.2_pre3:*:*:*:*:*:*:*
cpe:2.3:a:proftpd_project:proftpd:1.2_pre4:*:*:*:*:*:*:*
cpe:2.3:a:proftpd_project:proftpd:1.2_pre5:*:*:*:*:*:*:*

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