CVE-2025-8036

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

22/07/2025

Last modified:

13/04/2026

Description

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

Impact

Vector 3.x

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

Base Score: 8.10 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

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

Base Score 3.x

8.10

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:mozilla:firefox:::::esr:::*		140.1.0 (excluding)
cpe:2.3:a:mozilla:firefox:::::-:::*		141.0 (excluding)
cpe:2.3:a:mozilla:thunderbird:::::esr:::*		140.1.0 (excluding)
cpe:2.3:a:mozilla:thunderbird:::::-:::*		141.0 (excluding)

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

CVE-2025-8036

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools