CVE-2019-20925

7.5 highEPSS 1.7%

High (7.5) in mongodb mongodb. EPSS 1.7% chance of exploitation in the next 30 days.

An unauthenticated client can trigger denial of service by issuing specially crafted wire protocol messages, which cause the message decompressor to incorrectly allocate memory. This issue affects MongoDB Server v4.2 versions prior to 4.2.1; MongoDB Server v4.0 versions prior to 4.0.13; MongoDB Server v3.6 versions prior to 3.6.15 and MongoDB Server v3.4 versions prior to 3.4.24.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 1.7% chance of exploitation in the next 30 days; higher than 76% of CVEs (scores of 2026-10-31)
CWEs: CWE-697, CWE-839
Published: 2020-11-24
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mongodb:mongodb

References

https://jira.mongodb.org/browse/SERVER-43751
https://jira.mongodb.org/browse/SERVER-43751

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