vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2025-1019

Fullscreen notification not properly displayed

MEDIUM
4.3
CVSS Score
Published: February 4, 2025 at 01:58 PM UTC
Updated: October 5, 2026 at 03:10 PM UTC
2 products affected across 1 vendorFirefoxThunderbird

Using Firefox by Mozilla?

Get instant alerts when new vulnerabilities affect Firefox - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
MEDIUM4.3
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

The z-order of the browser windows could be manipulated to hide the fullscreen notification. This could potentially be leveraged to perform a spoofing attack. This vulnerability affects Firefox < 135 and Thunderbird < 135.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Firefox· Mozilla
95%
v < 135.0
Vendor states this is fixed in 135 (unaffected)
Affected range stops below 135.0, so it looks safe — our inference, not a vendor statement
Thunderbird· Mozilla
95%
131.0 ≤ v < 135.0
Vendor states this is fixed in 135 (unaffected)
Affected range stops below 135.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

Permissions Required
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1940162
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2025-07/
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2025-11/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-1021

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card