A user authorized to perform database queries may trigger denial of service by issuing specially crafted queries with compound indexes affecting QueryPlanner. This issue affects MongoDB Server v3.6 versions prior to 3.6.9 and MongoDB Server v4.0 versions prior to 4.0.3.
Published 2020-11-23 16:15:12
Updated 2024-01-23 15:15:10
Source MongoDB, Inc.
View at NVD,   CVE.org
Vulnerability category: Denial of service

Threat overview for CVE-2018-20802

Top countries where our scanners detected CVE-2018-20802
Top open port discovered on systems with this issue 27017
IPs affected by CVE-2018-20802 2,634
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2018-20802!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2018-20802

0.07%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 28 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-20802

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.0
MEDIUM AV:N/AC:L/Au:S/C:N/I:N/A:P
8.0
2.9
NIST
6.5
MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.8
3.6
MongoDB, Inc.
6.5
MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.8
3.6
NIST

CWE ids for CVE-2018-20802

  • The product does not properly check when a function or operation returns a value that is legitimate for the function, but is not expected by the product.
    Assigned by: cna@mongodb.com (Secondary)

References for CVE-2018-20802

Products affected by CVE-2018-20802

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