AUGUST 4, 2026
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Case File

CVE-2025-8036

HIGH · CVSS 8.1 EPSS 0.42%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-07-22 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.1. It affects Firefox.

CVE
CVE-2025-8036
Severity
HIGH
CVSS
8.1
EPSS
0.42%
Firefox

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)