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Vulnerabilities/CVE-2016-1646Public Intelligence Dossier
Source: debian · Limited verification•Last verified: •Collection Degraded
CVE-2016-1646ListedHIGH (raw)CVSS 9.3CWE-125

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: 29 Mar 2016•Last updated: 17 Jun 2026, 06:12 AM IST•Source identifier: chrome-cve-admin@google.com
Dossier completeness: source-provided sections 3 / 3 · rule guidance available. Missing source facts count as incomplete.
Official source
CISA KEV catalog
Listed
Added08 Jun 2022
Due22 Jun 2022
RansomwareUnknown
CVSS score
9.3HIGH (raw)
AV:N/AC:M/Au:N/C:C/I:C/A:C
Metric sourcenvd@nist.gov
EPSS probability
48.1%0.481
Percentile99th
Weakness type
CWE-125
No further CWE recorded
Remediation
Patch status unknown
No fixed version or KB recorded

Why It Matters

Analysis dossier

Why It Matters

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.

SOC priority

Immediate Attention

Actively exploited (source statement)

Yes

Publicly disclosed

Unknown

Risk basis: CISA KEV exploitation signal; SOC ecosystem technology relevance; HIGH severity; Source-confirmed exploitation or CISA KEV/ransomware metadata

Affected Products & Remediation

10 source-backed products
Affected products and versions (source)
  • debian debian linux · 8.0; 9.0 · NVD CPE · Source
  • canonical ubuntu linux · 14.04; 15.10; 16.04 · NVD CPE · Source
  • google chrome · < 49.0.2623.108 · NVD CPE · Source
  • suse package hub · version range not provided by source · NVD CPE · Source
  • opensuse leap · 42.1 · NVD CPE · Source
  • opensuse opensuse · 13.1 · NVD CPE · Source
  • redhat enterprise linux desktop · 6.0 · NVD CPE · Source
  • redhat enterprise linux eus · 6.7 · NVD CPE · Source
  • redhat enterprise linux server · 6.0 · NVD CPE · Source
  • redhat enterprise linux workstation · 6.0 · NVD CPE · Source
Recorded patch / KBNot provided by source

Vendor or catalog guidance (source)

  • CISA KEV: Apply updates per vendor instructions.

Known exploitation (source facts)

Only what a source states. Unknown means no source has said either way; it is not "not exploited".

CISA KEV
Listed
Exploited (source statement)
Yes
Publicly disclosed (source)
Unknown

CISA required action: Apply updates per vendor instructions.

Suggested hunting (rule-based inference)

SecOps Signal recommendation (rule-based inference). These steps are hunting hypotheses from the vulnerability class; they do not state or imply that exploitation occurred here or anywhere.

Matched kev-network-exposure (CVSS AV:N, CISA KEV Listed)

Exposure

  1. Identify assets with the exact CVE and confirm the affected product/version against the advisory.Telemetry: DeviceTvmSoftwareVulnerabilities · KEV listing raises urgency, but inventory is needed to establish local exposure. · Rule kev-network-exposure

Exploitation evidence

  1. Review relevant edge or application access logs for unusual requests around the advisory window.Telemetry: CommonSecurityLog · Log review is a hunting hypothesis; KEV listing alone does not show local exploitation. · Rule kev-network-exposure

Response

  1. Recheck the affected assets after the source-stated mitigation or update is applied.Telemetry: DeviceTvmSoftwareVulnerabilities · A follow-up inventory check verifies local remediation. · Rule kev-network-exposure

CISA KEV Record

Catalog entry
08 Jun 2022
Required action due
22 Jun 2022
Known ransomware use
Unknown

Apply updates per vendor instructions.

Change History & Source Data

— No recorded material change

CNA / source
chrome-cve-admin@google.com
Record status · verification
UPDATED · CISA KEV confirmed
CPE
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*, cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*, cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*, cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*, cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*, cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*, cpe:2.3:a:suse:package_hub:-:*:*:*:*:*:*:*, cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*, cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*, cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*

Evidence & Provenance

4 public sources
CISA KEV CatalogAdded 2022-06-08nvd.nist.govSource recordcode.google.comSource recordcodereview.chromium.orgSource record

Linked by the query's stored exact CVE association. Review required tables and validation status before use.

Detection Hunting Query
Target: DeviceTvmSoftwareVulnerabilities•Defender XDR
Detect endpoints exposed to CVE-2016-1646
Purpose: Exposure assessment (Category: Exposure Check)Why linked: Query metadata names CVE-2016-1646
DeviceTvmSoftwareVulnerabilities| where CveId == "CVE-2016-1646"| project DeviceId, DeviceName, OSPlatform, OSVersion, SoftwareVendor, SoftwareName, SoftwareVersion, CveId, VulnerabilitySeverityLevel, RecommendedSecurityUpdate, RecommendedSecurityUpdateId| sort by VulnerabilitySeverityLevel desc
Schema Checked · Not runtime validatedSource: SecOps Signal deterministic template · Limited verificationStatic screening: Passed structure and schema checks; tenant execution is not verified.
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Correlated briefings

SecOps Signal surfaces public advisory facts only. A missing value means the source has not published it, not that your environment is unaffected. No tenant inventory is connected.