CVE-2019-2392 — $mod can result in undefined behavior

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MEDIUM

$mod can result in undefined behavior

Published Nov 23, 2020

6.5

MEDIUM

CVSS 3.1

EPSS 1.26%

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.

Affected products

Vendor MongoDB Inc. Product MongoDB Server Default
unaffected
- Version
  3.6
  Status
  affected
  Constraints
  <3.6.20
- Version
  4.0
  Status
  affected
  Constraints
  <4.0.20
- Version
  4.2
  Status
  affected
  Constraints
  <4.2.9
- Version
  4.4
  Status
  affected
  Constraints
  <4.4.1

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

MongoDB Inc.

MongoDB Server

unaffected

Version	Status	Constraints
3.6	affected	<3.6.20
4.0	affected	<4.0.20
4.2	affected	<4.2.9
4.4	affected	<4.4.1

Red Hat Advanced Cluster Management for Kubernetes 2

mongodb

Not affected
Red Hat OpenStack Platform 10 (Newton)

mongodb

Out of support scope
Red Hat Software Collections

rh-mongodb36-mongodb

Will not fix
Red Hat Update Infrastructure 3 for Cloud Providers

mongodb

Will not fix

Product	Package	State	Advisory
Red Hat Advanced Cluster Management for Kubernetes 2	mongodb	Not affected	n/a
Red Hat OpenStack Platform 10 (Newton)	mongodb	Out of support scope	n/a
Red Hat Software Collections	rh-mongodb36-mongodb	Will not fix	n/a
Red Hat Update Infrastructure 3 for Cloud Providers	mongodb	Will not fix	n/a

Remediation

No remediation recorded yet.

Metrics

1.26% 0.01261

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.

EPSS probability 0.01261

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (9 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 2, 2026	1.26% (0.01261)	68.59th	v5 (v2026.06.15)
Sep 20, 2026	1.26% (0.01261)	68.31th	v5 (v2026.06.15)
Jul 20, 2024	0.07% (0.00068)	30.26th	v3 (v2023.03.01)
Jun 12, 2024	0.07% (0.00068)	29.71th	v3 (v2023.03.01)
Mar 7, 2023	0.07% (0.00068)	27.70th	v3 (v2023.03.01)
Mar 6, 2023	0.89% (0.00885)	27.89th	v2 (v2022.01.01)
Feb 4, 2022	0.89% (0.00885)	10.50th	v2 (v2022.01.01)
Feb 3, 2022	0.52% (0.00518)	11.68th	v5 (v2026.06.15)
Apr 14, 2021	0.52% (0.00518)	0.00th	v1

Weaknesses (1)

CWE-190

Integer Overflow

References (5)

https://access.redhat.com/security/cve/CVE-2019-2392
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1900865
Issue Tracking
https://jira.mongodb.org/browse/SERVER-43699
x_refsource_CONFIRMIssue TrackingVendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2019-2392
https://www.cve.org/CVERecord?id=CVE-2019-2392

Link	Providers	Tags
https://access.redhat.com/security/cve/CVE-2019-2392		Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1900865		Issue Tracking
https://jira.mongodb.org/browse/SERVER-43699		x_refsource_CONFIRMIssue TrackingVendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2019-2392
https://www.cve.org/CVERecord?id=CVE-2019-2392