Google · Chromium V8
CVE-2018-6065
Google Chromium V8 Integer Overflow Vulnerability
What it is
Integer overflow in computing the required allocation size when instantiating a new javascript object in V8 in Google Chrome prior to 65.0.3325.146 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CISA: Google Chromium V8 Engine contains an integer overflow vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. 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
- November 14, 2018
- Severity
- High 8.8 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- 60% in the top 0.9% of all known vulnerabilities
- Weakness
- CWE-190 CWE-787
- More details
- NVD · CVE.org · CISA
All references (7)
- https://access.redhat.com/errata/RHSA-2018:0484
- https://www.debian.org/security/2018/dsa-4182
- https://crbug.com/808192
- https://chromereleases.googleblog.com/2018/03/stable-channel-update-for-desktop.html
- http://www.securityfocus.com/bid/103297
- https://www.exploit-db.com/exploits/44584/
- https://www.zerodayinitiative.com/advisories/ZDI-19-367/
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.