VULNERABILITY INTELLIGENCE

CVE-2025-10859

CVSS score4 MEDIUM
EPSS probability0.12%
CISA KEVNot currently listed
Published2025-09-30
Last modified2026-10-05
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Description

Cookie storage for non-HTML temporary documents was being shared incorrectly with normal browsing content, allowing information from private tabs to escape Incognito mode even after the user closed all tabs. This vulnerability was fixed in Firefox for iOS 143.1.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-359

Primary references