How severe is CVE-2019-20176?

CVE-2019-20176 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-20176 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-20176?

CVE-2019-20176 primarily affects Pureftpd Pure-ftpd. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-20176?

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

When was CVE-2019-20176 published?

CVE-2019-20176 was published on 2019-12-31 and last updated on 2026-06-17.

CVE-2019-20176

CVE-2019-20176 is a high-severity vulnerability in Pureftpd Pure-ftpd with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Pureftpd Pure-ftpd
Published: 2019-12-31
Last modified: 2026-06-17

Description

In Pure-FTPd 1.0.49, a stack exhaustion issue was discovered in the listdir function in ls.c.

Frequently asked questions

What is CVE-2019-20176?: In Pure-FTPd 1.0.49, a stack exhaustion issue was discovered in the listdir function in ls.c.
How severe is CVE-2019-20176?: CVE-2019-20176 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-20176 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-20176?: CVE-2019-20176 primarily affects Pureftpd Pure-ftpd. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-20176?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-20176 published?: CVE-2019-20176 was published on 2019-12-31 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:pureftpd:pure-ftpd:1.0.49:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*

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