CVE-2025-10859 - Vulnerability Details - OpenCVE

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 affects Firefox for iOS < 143.1.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Apple	Ios
Mozilla	Firefox For Ios

No data.

No data.

References

Link	Providers
https://bugzilla.mozilla.org/show_bug.cgi?id=1684624
https://www.mozilla.org/security/advisories/mfsa2025-79/

History

Thu, 02 Oct 2025 09:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Apple Apple ios Mozilla Mozilla firefox For Ios
Vendors & Products		Apple Apple ios Mozilla Mozilla firefox For Ios

Tue, 30 Sep 2025 14:15:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-359
Metrics		cvssV3_1 `{'score': 4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Tue, 30 Sep 2025 13:00:00 +0000

Type	Values Removed	Values Added
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 affects Firefox for iOS < 143.1.
References		https://bugzilla.mozilla.org/show_bug.cgi?id=1684624 https://www.mozilla.org/security/advisories/mfsa2025-79/

MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2025-09-30T12:49:07.059Z

Updated: 2025-09-30T13:38:50.570Z

Reserved: 2025-09-22T18:14:38.909Z

Link: CVE-2025-10859

Vulnrichment

Updated: 2025-09-30T13:38:09.641Z

NVD

Status : Received

Published: 2025-09-30T13:15:48.550

Modified: 2025-09-30T14:15:37.667

Link: CVE-2025-10859

Redhat

No data.

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