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CVE-2016-1646

8.8
HIGHCVSS v3.1 Base Score
66.91%
MEDIUM RiskEPSS (99th percentile)
KEV

The Array.prototype.concat implementation in builtins.cc in Google V8, as used in Google Chrome before 49.0.2623.108, does not properly consider element data types, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via crafted JavaScript code.

Published: 3/29/2016
Modified: 10/22/2025
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ACTIVELY EXPLOITED IN THE WILD

This vulnerability is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Vulnerability Name:

Google Chromium V8 Out-of-Bounds Read Vulnerability

Vendor / Product:

Google Chromium V8

Required Action:

Apply updates per vendor instructions.

Due Date: 6/22/2022(OVERDUE)
Added to KEV:

6/8/2022

Notes:

https://nvd.nist.gov/vuln/detail/CVE-2016-1646

Vulnerability Summary

CVSS v3 Score

8.8HIGH

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

CVSS v2 Score

9.3

AV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS Score (Exploitation Probability)

66.91%MEDIUM Exploitation Risk
99th percentile

This vulnerability has a 66.91% probability of being exploited in the next 30 days, ranking higher than 99% of all scored CVEs.

CWE Classification

Related Vulnerabilities

Same Weakness Type(CWE-125)

Similar SeverityHIGH