Is CVE-2019-2391 in the CISA KEV catalog?

No. CVE-2019-2391 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-2391?

CVE-2019-2391 has a CVSS v3 base score of 4.2 (MEDIUM).

What is the EPSS score for CVE-2019-2391?

CVE-2019-2391 has an EPSS score of 0.91% (56th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-2391?

Upgrade node-mongodb on debian 11 to 3.5.6+~cs11.12.19-1 or later.

CVE & CISA-KEV Catalog

CVE-2019-2391

MEDIUM

4.2

CVSS v3

NVD

Description

Incorrect parsing of certain JSON input may result in js-bson not correctly serializing BSON. This may cause unexpected application behaviour including data disclosure. This issue affects: MongoDB Inc. js-bson library version 1.1.3 and prior to.

CWE-502Deserialization of Untrusted Data

How to fix

Remediation Available

node-mongodbDebian

Fixed in:3.5.6+~cs11.12.19-1CVE-2019-2391

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.91%probability of exploitation in 30 days

56thpercentile

Moderate risk: more likely to be exploited than 56% of all known CVEs.

References

Patch1

github.com

Related Vulnerabilities

Other CWE-502 (Deserialization of Untrusted Data) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-0669	High	7.2	100%	KEV + Ransom	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-35464	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-29300	Critical	9.8	100%	KEV + Ransom	-
CVE-2025-53770	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-47986	Critical	9.8	100%	KEV + Ransom	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-23.