SB2025100122 - Information disclosure in Firefox for iOS
Published: October 1, 2025
Security Bulletin ID
SB2025100122
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Information disclosure (CVE-ID: CVE-2025-10859)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to cookie storage for non-HTML temporary documents is shared incorrectly with normal browsing content. A remote attacker can trick the victim into visiting a specially crafted website and access information used from the Incognito mode even after the user closed all tabs.
Remediation
Install update from vendor's website.