Google · Chromium V8
CVE-2016-1646
Google Chromium V8 Out-of-Bounds Read Vulnerability
What it is
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: Google Chromium V8 Engine contains an out-of-bounds read vulnerability that allows a remote attacker to cause a denial of service or possibly have another unspecified impact via crafted JavaScript code. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
What to do
Apply updates per vendor instructions.
Deadline for US federal agencies: June 22, 2022
- Added to the CISA list
- June 8, 2022
- Published
- March 29, 2016
- Severity
- High 8.8 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- 48% in the top 1.1% of all known vulnerabilities
- Weakness
- CWE-119
- More details
- NVD · CVE.org · CISA
All references (11)
- http://rhn.redhat.com/errata/RHSA-2016-0525.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00039.html
- http://www.debian.org/security/2016/dsa-3531
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00001.html
- http://www.ubuntu.com/usn/USN-2955-1
- https://security.gentoo.org/glsa/201605-02
- http://googlechromereleases.blogspot.com/2016/03/stable-channel-update_24.html
- https://codereview.chromium.org/1804963002/
- http://www.securitytracker.com/id/1035423
- https://code.google.com/p/chromium/issues/detail?id=594574
More exploited flaws from Google
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Sep 9, 2026 | Out of Bounds Write | Chromium V8 | High 8.8 | 3.5% |
| Sep 4, 2026 | Type Confusion | Chromium V8 | High 8.8 | 1.8% |
| Jun 9, 2026 | Out-of-Bounds Read and Write | Chromium V8 | High 8.8 | 2.4% |
| Mar 13, 2026 | Improper Restriction of Operations Within the Bounds of a Memory Buffer | Chromium V8 | High 8.8 | 2.7% |
| Nov 19, 2025 | Type Confusion | Chromium V8 | High 8.8 | 4.9% |
| Sep 23, 2025 | Type Confusion | Chromium V8 | High 8.8 | 6.1% |
| Jul 2, 2025 | Type Confusion | Chromium V8 | High 8.1 | 14% |
| Jun 5, 2025 | Out-of-Bounds Read and Write | Chromium V8 | High 8.8 | 7.8% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.