SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-16487

A prototype pollution vulnerability was found in lodash <4.17.11 where the functions merge, mergeWith, and defaultsDeep can be tricked into adding or modifying properties of Object.prototype.

MEDIUM 5.6EPSS 1.49%

Does this matter?

Lower severity and a low EPSS score (1.49%). Track it; it rarely justifies an emergency change on its own.

Description

A prototype pollution vulnerability was found in lodash <4.17.11 where the functions merge, mergeWith, and defaultsDeep can be tricked into adding or modifying properties of Object.prototype.

CVSS 3.1
5.6 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS
1.49% probability · 74th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-400
Affected
lodash/lodash
Source
support@hackerone.com
EPSS trend
0%3%5%27 October 2026: 1.49%27 October 202627 October 2026

EPSS 1.5% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.