CVE-2025-10529

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

16/09/2025

Last modified:

13/04/2026

Description

Same-origin policy bypass in the Layout component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

Base Score 3.x

6.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:mozilla:firefox:::::esr:::*		140.3.0 (excluding)
cpe:2.3:a:mozilla:firefox:::::-:::*		143.0 (excluding)
cpe:2.3:a:mozilla:thunderbird::::::::		143.0 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2025-10529

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools