CVE-2025-10529

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

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1970490	Permissions Required
https://www.mozilla.org/security/advisories/mfsa2025-73/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-75/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-77/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-78/	Vendor Advisory
https://lists.debian.org/debian-lts-announce/2025/09/msg00020.html
https://lists.debian.org/debian-lts-announce/2025/09/msg00026.html

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:firefox:::::esr:::*
	cpe:2.3:a:mozilla:firefox:::::-:::*
	cpe:2.3:a:mozilla:thunderbird::::::::

History

03 Nov 2025, 19:15

Type	Values Removed	Values Added
References		() https://lists.debian.org/debian-lts-announce/2025/09/msg00020.html - () https://lists.debian.org/debian-lts-announce/2025/09/msg00026.html -

Information

Published : 2025-09-16 13:15

Updated : 2025-11-03 19:15

NVD link : CVE-2025-10529

Mitre link : CVE-2025-10529

CVE.ORG link : CVE-2025-10529

JSON object : View

Products Affected

mozilla

thunderbird
firefox

CWE

CWE-942

Permissive Cross-domain Security Policy with Untrusted Domains

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