CRITICAL

CVE-2018-16492

Q: Is CVE-2018-16492 actively exploited?

Active exploitation of CVE-2018-16492 has not been confirmed. Its EPSS score was 3.0% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2018-16492?

CVE-2018-16492 has a CVSS v3 base score of 9.8 (CRITICAL severity).

CVSS v3

9.8

CRITICAL

EPSS Score

3.0 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

extendnpmfrom 1.1.3 · fixed in 2.0.2

Vendor advisories

CVE-2018-16492 Red Hat Product Security1 product fixed · 1 known affected
nodejs-extend: Prototype pollution can allow attackers to modify object properties
rh-nodejs6-nodejs-extend.src as a component of Red Hat Software Collections
RHSA-2021:3917 Red Hat Product Security1 product fixed
Red Hat Security Advisory: Red Hat Quay v3.6.0 security, bug fix and enhancement update

Full record on NVD

Description

A prototype pollution vulnerability was found in module extend <2.0.2, ~<3.0.2 that allows an attacker to inject arbitrary properties onto Object.prototype.

Technical details

Published: 2019-02-01

Frequently asked questions

What is CVE-2018-16492?

A prototype pollution vulnerability was found in module extend <2.0.2, ~<3.0.2 that allows an attacker to inject arbitrary properties onto Object.prototype.

Is CVE-2018-16492 actively exploited?

Active exploitation of CVE-2018-16492 has not been confirmed. Its EPSS score was 3.0% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-16492?

CVE-2018-16492 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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