vciy

CVE-2016-1646

INDEX BUILT · 2026-09-20

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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…

CVE-2016-16463 of 4 sources documented this
77

rank 77 = 40 + 22 + 1 + 8 + 6

rank@v1 · act now

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.48110 · CISA KEV listed  ·  without this subject the record ranks 37

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 8.8, from NVD  ·  without this subject the record ranks 55

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2026-01-13  ·  without this subject the record ranks 76

How much of the world it touches

NVD CPE configurations

12 products in the CPE ranges  ·  without this subject the record ranks 69

Someone else already set the date

CISA KEV remediation due date

CISA remediation date held  ·  without this subject the record ranks 71

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$2.40Mover the next 30 days, if this record is yours
Movement+$1.94Mon 2024-12-17, the last material move, 1 year, 8 months before this reading
Basisassumeda published average, not your estate

$2.40M = $4.99M incident cost x 1 exposure x 0.4811 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.4811EPSSKEV · LISTED
Severity8.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationin the wild · KEVreceipt
Defenseunaffected versions publishedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2026-06-15, 81 days at 0.48, as of 2026-09-04. arc-rules@v1

Foresight · where to check next

Google ChromeGoogle ChromeApple macOSApple Safaripolkit1646

This record is one instance of CWE-125, out-of-bounds read. The index holds 9766 prior instances of this class, 18 KEV-listed. The nearest of its KEV-listed records are drawn beside this. taxonomy@v1

Full pattern panel

Prior records in this weakness class. Each is its own record, dated and receipted.
Color is a claim, not decoration:the hostile worldthe defenseno signalspoke length is how much of the record matches, not how bad it is

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Harm, if it fires from the vector and the weakness

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Reachnetwork-reachable · no privileges required · user interaction required · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classCWE-125 Out-of-bounds Readreceipt
Published consequencesCWE-125: Confidentiality: Read Memory; Confidentiality: Bypass Protection Mechanism; Availability: DoS: Crash, Exit, or Restart; Other: Varies by Context[email protected]
Ransomware campaign useUnknown to CISAreceipt

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

First unaffected version, by branchchrome 49.0.2623.108receipt
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.
CISA remediation statusoverdue since 2022-06-22receipt
CISA required actionApply updates per vendor instructions.receipt
Published to CISA KEV2262 daysderived

Exploit Status & Known PoCs a ladder, not a score

Current rung: Exploited in the wild · CISA KEV listed, 2022-06-08.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed2022-06-08receipt
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD8.8 HIGHreceipt
Exploit probability0.4811 · top 1% of all CVEsreceipt
Blast breadth9 products across 5 vendorsderived
Assigned byChromereceipt
Recorded changes72 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesGoogle chrome; Canonical ubuntu linux; Debian linux; and 6 morereceipt
Published rangesdebian linux 8.0; debian linux 9.0; canonical ubuntu linux 14.04; canonical ubuntu linux 15.10receipt
Show all 12 published ranges
debian linux 8.0
debian linux 9.0
canonical ubuntu linux 14.04
canonical ubuntu linux 15.10
canonical ubuntu linux 16.04
google chrome < 49.0.2623.108
opensuse leap 42.1
opensuse 13.1
redhat enterprise linux desktop 6.0
redhat enterprise linux eus 6.7
redhat enterprise linux server 6.0
redhat enterprise linux workstation 6.0

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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What it is stated by the CNA

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. receipt

NVD's analysis a second authority

severity
8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
weakness
CWE-125
affected versions
debian linux 8.0; debian linux 9.0; canonical ubuntu linux 14.04; and 9 more, listed in full below
also scored by
8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

check it yourself rhn.redhat.com lists.opensuse.org lists.opensuse.org googlechromereleases.blogspot.com debian.org codereview.chromium.org +5 morereceipt

Dated events

2022-06-08Added to CISA KEV2022-06-22CISA remediation due2024-06-29EPSS moved 0.04 to 0.292024-12-17EPSS moved 0.29 to 0.682026-06-15EPSS moved 0.67 to 0.45

Movement the material steps

4 Feb 20220.01955
7 Mar 20230.00911 · scoring model v2023.03.01
29 Jun 20240.28906 · crossed 0.10
17 Dec 20240.67773 · crossed 0.50
17 Mar 20250.66913 · scoring model v2025.03.14
15 Jun 20260.45298 · crossed 0.50 · scoring model v2026.06.15
23 Jun 20260.4811
Show all 61 observations
4 Feb 20220.01955
7 Mar 20230.00911
11 Apr 20230.01071
30 Jun 20230.01210
8 Nov 20230.03965
15 Nov 20230.04289
29 Jun 20240.28906
17 Dec 20240.67773
17 Mar 20250.66913
22 Mar 20250.67767
23 Mar 20250.66913
25 Mar 20250.67767
26 Mar 20250.66913
28 Mar 20250.67767
29 Mar 20250.66913
3 Apr 20250.67767
4 Apr 20250.66913
7 Apr 20250.67767
8 Apr 20250.66913
17 Apr 20250.67767
18 Apr 20250.66913
1 May 20250.67767
3 May 20250.69302
4 May 20250.72695
7 May 20250.71874
8 May 20250.72695
11 May 20250.71874
1 Jun 20250.72695
4 Jun 20250.71874
14 Jun 20250.72695
18 Jun 20250.71874
1 Jul 20250.72695
4 Jul 20250.71874
12 Jul 20250.69769
25 Jul 20250.71722
1 Aug 20250.73437
5 Aug 20250.71722
1 Sep 20250.73437
4 Sep 20250.71722
1 Oct 20250.73437
4 Oct 20250.71722
21 Oct 20250.64752
22 Oct 20250.65121
1 Nov 20250.68181
4 Nov 20250.65121
24 Nov 20250.68941
29 Nov 20250.65121
1 Dec 20250.68181
4 Dec 20250.65121
1 Jan 20260.68181
4 Jan 20260.65121
13 Jan 20260.68943
14 Jan 20260.68652
1 Feb 20260.70454
4 Feb 20260.68652
28 Feb 20260.66511
1 Mar 20260.6842
4 Mar 20260.66511
22 Apr 20260.66909
15 Jun 20260.45298
23 Jun 20260.4811

61 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.4811Published2016-03-29CISA KEV2022-06-08Index as of2026-09-04

Listed by CISA 2262 days after it published and the record had been public for 10 years, 5 months when this index was last written.

No material movement in 73 days as of the last ingest this index recorded.

Published 2016-03-29 receipt · CISA KEV 2022-06-08 receipt · Index as of 2026-09-04 derived

The pattern, elsewhere

This record is one instance of CWE-125, out-of-bounds read. The index holds 9766 prior instances of this class, 18 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2026-11645 · Google Chromematches 8 of 8KEV listed · 2026receipt
CVE-2024-0519 · Google Chromematches 8 of 8KEV listed · 2024receipt
CVE-2017-5030 · Google Chrome prior to 57.0.2987.98 for…matches 8 of 8KEV listed · 2017receipt
CVE-2023-28204 · Apple macOSmatches 6 of 8KEV listed · 2023receipt
CVE-2023-42916 · Apple Safarimatches 6 of 8KEV listed · 2023receipt
CVE-2021-4034 · polkitmatches 5 of 8KEV listed · 2022receipt

"Matches n of m" counts the attributes the two records can both be compared on: the CVSS metrics they share a version of, any weakness class beyond this one, and the vendor. fit-rules@v1

9766 records in this class held. The six above are drawn from the ones CISA has listed as exploited, ranked by how much of the record matches this one. That is why every one of them is KEV-listed: the pool is, so the colour on those spokes says nothing the pool has not already said.

No curated product neighbourhood is held for this product, so the records above are the nearest this index can name. The neighbourhood table covers a small set of products and is extended by hand.

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