Out-of-bounds Read in Google Chrome

CVE-2018-6143

Insufficient validation in V8 in Google Chrome prior to 67.0.3396.62 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page.

Vulnerability class: Buffer Overflow

EPSS: 0.016 (73.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-6143?
CVE-2018-6143 is a medium-severity vulnerability in Google Chrome, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2019-01-09.
How severe is CVE-2018-6143?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2018-6143 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.