#VU115730 Security features bypass in Mozilla Firefox and Firefox ESR - CVE-2025-10529
Published: September 17, 2025
Vulnerability identifier: #VU115730
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:U/U:Green
CVE-ID: CVE-2025-10529
CWE-ID: CWE-254
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Mozilla Firefox
Firefox ESR
Mozilla Firefox
Firefox ESR
Software vendor:
Mozilla
Mozilla
Description
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to an error in the Layout component. A remote attacker can bypass same-origin policy and gain unauthorized access to data outside of the current domain.
Remediation
Install updates from vendor's website.