CASCACascade Atlas

Evidence dossier

CVE-2016-1646

CVE-2016-1646

75.9–92.1Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

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.

State
PUBLISHED
Published
Mar 29, 2016
Updated
Oct 21, 2025
Evidence coverage
85%
CISA KEVCatalog member

Apply updates per vendor instructions.

FIRST EPSS48.11%

2026-07-18 · v2026.06.15 · percentile 98.7%

Source stateNo scored conflict

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

Chromeoriginal assertion
container

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.

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

CISA KEVoriginal assertion
observed_exploitation

Google Chromium V8 Out-of-Bounds Read Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.481100000000; percentile 0.987260000000

Applicability

Cited product scope

Trace impact →
n/an/a
[{"status": "affected", "version": "n/a"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*; end excluding 49.0.2623.108supported
Unknown vendorUnknown product
cpe:2.3:a:suse:package_hub:-:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_eus:6.7:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*supported

Assessments

CVSS by origin

8.8
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9.3
nvd@nist.govCVSS 2.0 · role PrimaryAV:N/AC:M/Au:N/C:C/I:C/A:C
8.8
134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8
CISA-ADPCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.