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CRITICAL

CVE-2019-16224

CVSS v3

9.8

CRITICAL

EPSS Score

1.8 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

An issue was discovered in py-lmdb 0.97. For certain values of md_flags, mdb_node_add does not properly set up a memcpy destination, leading to an invalid write operation. NOTE: this outcome occurs when accessing a data.mdb file supplied by an attacker.

Technical details

Published
2019-09-11

Frequently asked questions

What is CVE-2019-16224?

An issue was discovered in py-lmdb 0.97. For certain values of md_flags, mdb_node_add does not properly set up a memcpy destination, leading to an invalid write operation. NOTE: this outcome occurs when accessing a data.mdb file supplied by an attacker.

Is CVE-2019-16224 actively exploited?

Active exploitation of CVE-2019-16224 has not been confirmed. Its EPSS score was 1.8% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-16224?

CVE-2019-16224 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2019-16224 affecting your environment?

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