What is the CVSS score of CVE-2016-1646?

CVE-2016-1646 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 66.5%.

Is there a public PoC exploit available for CVE-2016-1646?

Yes, a public proof-of-concept exploit is available for CVE-2016-1646. Prioritise patching immediately. EPSS: 66.5%.

Is there a patch available for CVE-2016-1646?

Yes, a patch is available for CVE-2016-1646. Update the affected software to the latest version immediately.

Chrome CVE-2016-1646

HIGH

Out-of-bounds Read (CWE-125)

2016-03-29 chrome-cve-admin@google.com

Denial Of Service Buffer Overflow Information Disclosure Google Chrome

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Added to CISA KEV

Apr 21, 2026 - 15:31 CISA

CVE Published

Mar 29, 2016 - 10:59 cve.org

HIGH 8.8

DescriptionCVE.org

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.

AnalysisAI

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. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Actively exploited in the wild (cisa kev) and public exploit code available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Read (CWE-125), which allows attackers to read data from memory outside the intended buffer boundaries. 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. Affected products include: Debian Debian Linux, Canonical Ubuntu Linux, Google Chrome, Suse Package Hub, Opensuse Leap. Version information: before 49.0.2623.108.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Validate array indices and buffer lengths. Use memory-safe languages. Enable AddressSanitizer during testing.