CVE-2019-10758

CRITICAL
9.9
CVSS Score
Published: December 24, 2019 at 09:08 PM UTC
Updated: June 17, 2026 at 02:11 AM UTC
1 product affected across 1 vendorExpress Project Mongo Express

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Severity
CRITICAL9.9
Exploitation
CISA KEV
Exploit prediction
EPSS 85%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score84.7%

EPSS (Exploit Prediction Scoring System) estimates a 84.7% chance this CVE is exploited in the wild within the next 30 days — higher than 100% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

mongo-express before 0.54.0 is vulnerable to Remote Code Execution via endpoints that uses the `toBSON` method.

Required Action
Apply updates per vendor instructions.
Ransomware Use
Unknown
Added to KEV
Dec 10, 2021
Remediation Due
Jun 10, 2022
1601 days overdue

Description

mongo-express before 0.54.0 is vulnerable to Remote Code Execution via endpoints that uses the `toBSON` method. A misuse of the `vm` dependency to perform `exec` commands in a non-safe environment.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.54.0
Affected range stops below 0.54.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_MISCExploitThird Party Advisory
https://snyk.io/vuln/SNYK-JS-MONGOEXPRESS-473215
US Government Resource
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-10758

SSVC — Action Prioritization

SSVCActiveNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

9.9CRITICALCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfoCWE-94

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