CVE-2019-20925: high-severity vulnerability in MongoDB Server
Denial of service via malformed network packet
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 1.7%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
MongoDB Inc. · MongoDB ServerRelated CVEs — MongoDB Server
In the same product, most dangerous first.
CVE-2025-14847HIGHZlib compressed protocol header length confusion may allow memory readEPSS 83.2%KEVCVE-2021-32040MEDIUMLarge aggregation pipelines with a specific stage can crash mongod under default configurationEPSS 2.0%CVE-2020-7925HIGHDenial of Service when processing malformed Role namesEPSS 1.7%CVE-2018-20802MEDIUMPost-auth queries on compound index may crash mongodEPSS 1.6%CVE-2020-7928MEDIUMImproper neutralization of null byte leads to read overrunEPSS 1.4%CVE-2018-20803MEDIUMInfinite loop in aggregation expressionEPSS 1.4%