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Case File

CVE-2025-8037

CRITICAL · CVSS 9.1 EPSS 0.22%

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

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.1. It affects Firefox.

CVE
CVE-2025-8037
Severity
CRITICAL
CVSS
9.1
EPSS
0.22%
Firefox

Original NVD Description

Setting a nameless cookie with an equals sign in the value shadowed other cookies. Even if the nameless cookie was set over HTTP and the shadowed cookie included the `Secure` attribute. 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)

CVE-2026-16412 CRITICAL CVE-2026-16411 CRITICAL CVE-2026-16410 CRITICAL CVE-2026-16409 HIGH CVE-2026-16408 CRITICAL CVE-2026-16407 CRITICAL