Mozilla Thunderbird up to 134 Fullscreen Notification ui layer

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.2$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Mozilla Thunderbird up to 134. This affects an unknown function of the component Fullscreen Notification Handler. Such manipulation leads to ui layer. This vulnerability is uniquely identified as CVE-2025-1019. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Thunderbird up to 134. It has been rated as problematic. Affected by this issue is some unknown functionality of the component Fullscreen Notification Handler. The manipulation with an unknown input leads to a ui layer vulnerability. Using CWE to declare the problem leads to CWE-1021. The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain, which can lead to user confusion about which interface the user is interacting with. Impacted is integrity. CVE summarizes:

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 was fixed in Firefox 135 and Thunderbird 135.

The advisory is shared for download at bugzilla.mozilla.org. This vulnerability is handled as CVE-2025-1019 since 02/04/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 04/15/2026).

The vulnerability scanner Nessus provides a plugin with the ID 216055 (Ubuntu 20.04 LTS : Firefox vulnerabilities (USN-7263-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 135 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (216055). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

ADP CISA Base Score: 4.3
ADP CISA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Ui layer
CWE: CWE-1021
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 216055
Nessus Name: Ubuntu 20.04 LTS : Firefox vulnerabilities (USN-7263-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Thunderbird 135

Timelineinfo

02/04/2025 🔍
02/04/2025 +0 days 🔍
02/04/2025 +0 days 🔍
04/15/2026 +435 days 🔍

Sourcesinfo

Vendor: mozilla.org

Advisory: bugzilla.mozilla.org
Status: Confirmed

CVE: CVE-2025-1019 (🔍)
GCVE (CVE): GCVE-0-2025-1019
GCVE (VulDB): GCVE-100-294632

Entryinfo

Created: 02/04/2025 15:47
Updated: 04/15/2026 09:49
Changes: 02/04/2025 15:47 (56), 02/05/2025 21:31 (3), 02/11/2025 13:22 (2), 04/15/2026 09:49 (21)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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