Using an ID that can be controlled by a compromised renderer which allows any frame to overwrite the page_state of any other frame in the same process in Navigation in Google Chrome on Chrome OS prior to 62.0.3202.74 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.
Severity
CVSS 3.0
9.6 critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS
0.6% chance of exploitation in the next 30 days; higher than 50% of CVEs (scores of 2026-10-31)