CVE-2025-8036

Thunderbird cached CORS preflight responses across IP address changes. This allowed circumventing CORS with DNS rebinding. This vulnerability affects Firefox < 141, Firefox ESR < 140.1, Thunderbird < 141, and Thunderbird < 140.1.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1960834	Permissions Required
https://www.mozilla.org/security/advisories/mfsa2025-56/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-59/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-61/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-63/	Vendor Advisory
https://www.kb.cert.org/vuls/id/652514

Configurations

Configuration 1 (hide)

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

History

03 Nov 2025, 18:17

Type	Values Removed	Values Added
References		() https://www.kb.cert.org/vuls/id/652514 -

Information

Published : 2025-07-22 21:15

Updated : 2025-11-03 18:17

NVD link : CVE-2025-8036

Mitre link : CVE-2025-8036

CVE.ORG link : CVE-2025-8036

JSON object : View

Products Affected

mozilla

thunderbird
firefox

CWE

CWE-350

Reliance on Reverse DNS Resolution for a Security-Critical Action

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