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CVE-2018-3750

28
FAUCET Score

CVE-2018-3750 describes a critical prototype pollution vulnerability in the deep-extend Node.js module, affecting all versions up to and including 0.5.0. An attacker can manipulate the utilities function to modify the Object prototype, allowing them to add or alter properties on all objects within an application. This vulnerability carries a CVSS score of 9.8 (CRITICAL), indicating a network-based attack with low complexity and high impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.5.0CPE matchmatch criteria
cpe:2.3:a:deep_extend_project:deep_extend:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.15%
Probability of exploitation in next 30 days
EPSS Percentile
80.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0215 is in the 69th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (15)

npmpatch availablevia ghsa
Product: deep-extendFixed in: 0.5.1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: nodejs:12-8030020210129141730.229f0a1c
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-nodejs8-nodejs-0:8.17.0-2.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-nodejs12-nodejs-0:12.20.1-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-nodejs12-nodejs-nodemon-0:2.0.3-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSFixed in: rh-nodejs8-nodejs-0:8.17.0-2.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSFixed in: rh-nodejs12-nodejs-0:12.20.1-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSFixed in: rh-nodejs12-nodejs-nodemon-0:2.0.3-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUSFixed in: rh-nodejs8-nodejs-0:8.17.0-2.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUSFixed in: rh-nodejs12-nodejs-0:12.20.1-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUSFixed in: rh-nodejs12-nodejs-nodemon-0:2.0.3-1.el7
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: nodejs:10/nodejs-nodemon
redhatvendor investigatingvia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-nodejs10-nodejs-nodemon
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-nodejs4-nodejs-deep-extend
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-nodejs6-nodejs-deep-extend

Vendor Advisories (2)

npmGHSA-hr2v-3952-633qcritical

Prototype Pollution in deep-extend

Oct 9, 2018
redhatCVE-2018-3750Low

nodejs-deep-extend: Prototype pollution can allow attackers to modify object properties

Apr 18, 2018

References

hackerone.com / reports/311333
ExploitIssue TrackingThird Party Advisory