CVE-2019-2392 $mod can result in undefined behavior
An authenticated user can cause a denial of service in MongoDB by sending crafted queries using the $mod operator that trigger an integer overflow.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-2392?
CVE-2019-2392 is a medium-severity vulnerability in Mongodb Mongodb, published on 23 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A user authorized to perform database queries may trigger denial of service by issuing specially crafted queries, which use the $mod operator to overflow negative values. This issue affects: MongoDB Inc. MongoDB Server v4.4 versions prior to 4.4.1; v4.2 versions prior to 4.2.9; v4.0 versions prior to 4.0.20; v3.6 versions prior to 3.6.20.
Weakness: CWE-190
Which versions are affected by CVE-2019-2392?
It affects 1 product.
Products include Mongodb Mongodb.
How do I fix CVE-2019-2392?
No fix has been published for CVE-2019-2392 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-2392 being exploited?
There is no known exploitation of CVE-2019-2392 in the wild and no public exploit code.
Other vulnerabilities in Mongodb Mongodb
- CVE-2025-14847 MongoDB and MongoDB Server Improper Handling of Length Parameter Inconsistency
- CVE-2026-82067 Auth bypass in MongoDB Server
- CVE-2026-13072 MongoDB Improper Input Validation in Compute Mode External Data Processing Leading to Memory Corruption
- CVE-2017-15535 Denial of service in n/a
- CVE-2026-18691 Improper Authentication in MongoDB Intra-Cluster Connections Allows Credential Exposure
Sources
Also known as GHSA-6wx3-3pp4-7q95, UBUNTU-CVE-2019-2392.