CVE-2016-1646
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.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- googlechromereleases.blogspot.com/2016/03/stable-channel-update_24.htmlRelease NotesVendor Advisory
- lists.opensuse.org/opensuse-security-announce/2016-04/msg00000.htmlMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-04/msg00001.htmlMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-04/msg00039.htmlMailing ListThird Party Advisory
- rhn.redhat.com/errata/RHSA-2016-0525.htmlThird Party Advisory
- debian.org/security/2016/dsa-3531Mailing ListThird Party Advisory
- securitytracker.com/id/1035423Broken LinkThird Party Advisory
- ubuntu.com/usn/USN-2955-1Third Party Advisory
- code.google.com/p/chromium/issues/detail?id=594574ExploitIssue Tracking
- codereview.chromium.org/1804963002/Patch
- security.gentoo.org/glsa/201605-02Third Party Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-1646US Government Resource
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 1588 days
- CVSS
- 8.8 HIGH
- EPSS (30-day exploit probability)
- 48.1% · top 1% of all CVEs
- Weakness
- CWE-125
- Attack vector
- Network, remotely reachable
- 1.Apply updates per vendor instructions.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
- 4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.