How severe is CVE-2019-19272?

CVE-2019-19272 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-2019-19272 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-19272?

CVE-2019-19272 affects Proftpd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-19272?

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-2019-19272 published?

CVE-2019-19272 was published on 2019-11-26 and last updated on 2026-06-17.

CVE-2019-19272

CVE-2019-19272 is a high-severity vulnerability in Proftpd 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-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Proftpd
Published: 2019-11-26
Last modified: 2026-06-17

Description

An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. Direct dereference of a NULL pointer (a variable initialized to NULL) leads to a crash when validating the certificate of a client connecting to the server in a TLS client/server mutual-authentication setup.

Frequently asked questions

What is CVE-2019-19272?: An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. Direct dereference of a NULL pointer (a variable initialized to NULL) leads to a crash when validating the certificate of a client connecting to the server in a TLS client/server mutual-authentication setup.
How severe is CVE-2019-19272?: CVE-2019-19272 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-2019-19272 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-19272?: CVE-2019-19272 affects Proftpd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-19272?: 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-2019-19272 published?: CVE-2019-19272 was published on 2019-11-26 and last updated on 2026-06-17.

References

https://github.com/proftpd/proftpd/issues/858

Affected products (1)

cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:*

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Browse all CWE-476 (NULL Pointer Dereference) vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

31.36.163.95 (ipv4-addr)
106.51.92.114 (ipv4-addr)
95.87.248.223 (ipv4-addr)
41.128.181.196 (ipv4-addr)