Use-after-free in Microsoft Edge - CVE-2026-88097
Published: October 1, 2026
Vulnerability identifier: #VU153071
CSH Severity: Low
CVSS v4: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-88097
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when handling HTML content. A remote attacker can escape browser sandbox and execute arbitrary code with elevated privileges.
Affected software
Microsoft Edge
How to mitigate CVE-2026-88097
Install updates from vendor's website.
Microsoft Edge - update to 153.0.4234.46