CVE-2026-100823

MEDIUM CVSS 3.1: 5.4 EPSS 0.15%
Updated Oct 05, 2026
Mozilla
Parameter Value
CVSS 5.4 (MEDIUM)
Affected Versions before 157.0
Fixed In 157.0
Type CWE-451
Vendor Mozilla
Public PoC No

Spoofing issue in the Downloads component in Firefox for Android. This vulnerability was fixed in Firefox 157.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
Low
Partial disruption

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Mozilla Firefox_Mobile
cpe:2.3:a:mozilla:firefox_mobile:*:*:*:*:*:android:*:*
— 157.0