#VU123975 Out-of-bounds write in Google Chromium - CVE-2026-3909
Published: March 12, 2026
Vulnerability identifier: #VU123975
Vulnerability risk: Critical
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red
CVE-ID: CVE-2026-3909
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerable software:
Google Chromium
Google Chromium
Software vendor:
Google
Description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted HTML content in Skia. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger out-of-bounds write and execute arbitrary code on the target system.
Note, the vulnerability is being exploited in the wild.
Remediation
Install update from vendor's website.