Mozilla Thunderbird up to 137 on Android Filename ui layer

CVSS Meta Temp Score
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CTI Interest Score
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4.1$5k-$25k0.00

Summaryinfo

A vulnerability classified as problematic was found in Mozilla Thunderbird up to 137 on Android. The impacted element is an unknown function of the component Filename Handler. Executing a manipulation can lead to ui layer. The identification of this vulnerability is CVE-2025-4086. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Mozilla Thunderbird up to 137 on Android and classified as problematic. This vulnerability affects an unknown function of the component Filename Handler. The manipulation with an unknown input leads to a ui layer vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. CVE summarizes:

A specially crafted filename containing a large number of encoded newline characters could obscure the file's extension when displayed in the download dialog. *This bug only affects Firefox for Android. Other versions of Firefox are unaffected.* This vulnerability affects Firefox < 138 and Thunderbird < 138.

The advisory is shared for download at bugzilla.mozilla.org. This vulnerability was named CVE-2025-4086 since 04/29/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful 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 01/30/2026).

The vulnerability scanner Nessus provides a plugin with the ID 297163 (Linux Distros Unpatched Vulnerability : CVE-2025-4086), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 138 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (297163) and CERT Bund (WID-SEC-2025-1850). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Xerox FreeFlow Print Server

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

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

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: 297163
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-4086

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Thunderbird 138

Timelineinfo

04/29/2025 🔍
04/29/2025 +0 days 🔍
04/29/2025 +0 days 🔍
01/30/2026 +276 days 🔍

Sourcesinfo

Vendor: mozilla.org

Advisory: bugzilla.mozilla.org
Status: Confirmed

CVE: CVE-2025-4086 (🔍)
GCVE (CVE): GCVE-0-2025-4086
GCVE (VulDB): GCVE-100-306544
CERT Bund: WID-SEC-2025-1850 - Xerox FreeFlow Print Server: Mehrere Schwachstellen erm&ouml;glichen nicht spezifizierten Angriff

scip Labs: https://www.scip.ch/en/?labs.20130704

Entryinfo

Created: 04/29/2025 16:45
Updated: 01/30/2026 04:51
Changes: 04/29/2025 16:45 (57), 05/02/2025 17:27 (1), 08/16/2025 10:08 (7), 01/30/2026 04:51 (2)
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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