CVE-2016-1646
HighExploitedPublic exploitchromium-browser: out-of-bounds read in V8
Published Mar 24, 2016 · Updated Apr 22, 2026 · Also known as DEBIAN-CVE-2016-1646, DEBIAN-CVE-2016-1647, DEBIAN-CVE-2016-1648, DEBIAN-CVE-2016-1649, DEBIAN-CVE-2016-1650, DSA-3531-1, UBUNTU-CVE-2016-1646
Key Facts
Patch immediately- CVE-2016-1646 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Chrome (Google), Package Hub (Suse), Ubuntu Linux (Canonical) and 17 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 24, 2019. Public exploit code is available.
- EPSS estimates a 48% probability of exploitation in the next 30 days.
- Fixed versions are available, including chromedriver 49.0.2623.110-37.1, chromedriver 55.0.2883.75-3.1, chromium 49.0.2623.110-37.1.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
48%
Higher than 98.8% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2016-1646 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Jun 8, 2022 | Jun 22, 2022 | Not reported |
| Industry KEV feed | Sep 24, 2019 | Jun 22, 2022 | Not reported |
| CIRCL KEV | Jun 8, 2022 | Jun 22, 2022 | Not reported |
| ENISA EUVD | Jun 8, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
30 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ChromeGoogle | See advisory | 49.0.2623.108 |
| Package HubSuse | See advisory | n/a |
| Ubuntu LinuxCanonical | 14.04, 15.10, 16.04 | n/a |
| Debian LinuxDebian | 8.0, 9.0 | n/a |
| LeapOpensuse | 42.1 | n/a |
Patched Releases
chromedriver
49.0.2623.110-37.1, 55.0.2883.75-3.1
chromium
49.0.2623.110-37.1, 55.0.2883.75-3.1
chromium-browser
0:49.0.2623.108-1.el6, 49.0.2623.108-0ubuntu0.14.04.1.1113, 49.0.2623.108-0ubuntu1.1233, 49.0.2623.108-1~deb8u1
chromium-desktop-gnome
49.0.2623.110-37.1
chromium-desktop-kde
49.0.2623.110-37.1
chromium-ffmpegsumo
49.0.2623.110-37.1
Chrome
49.0.2623.108
oxide-qt
1.14.7-0ubuntu0.14.04.1, 1.14.7-0ubuntu1
ungoogled-chromium
113.0.5672.92-1.1
ungoogled-chromium-chromedriver
113.0.5672.92-1.1
Timeline
Publicly disclosed
Mar 24, 2016
Added to Industry KEV feed
Sep 24, 2019
Added to CISA KEV
Jun 8, 2022
Added to CIRCL KEV
Jun 8, 2022
Added to ENISA EUVD
Jun 8, 2022
Last updated
Apr 22, 2026
Weakness Type
- CWE-125 Out-of-bounds Read
References
- advisoryhttp://googlechromereleases.blogspot.com/2016/03/
- advisoryhttp://googlechromereleases.blogspot.com/2016/03/stable-channel-update_24.html
- advisoryopenSUSE-SU-2016:0929
- advisoryopenSUSE-SU-2016:0930
- advisoryopenSUSE-SU-2016:1059
FAQ
Common Questions.
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: Chrome (Google); Package Hub (Suse); Ubuntu Linux (Canonical) versions 14.04, 15.10, 16.04, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 24, 2019.
Yes. It was added on Jun 8, 2022 with a federal remediation due date of Jun 22, 2022.
Public exploit code is available.
Fixed versions are available, including chromedriver 49.0.2623.110-37.1, chromedriver 55.0.2883.75-3.1, chromium 49.0.2623.110-37.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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