What is the CVSS score of CVE-2025-0476?

CVE-2025-0476 has a CVSS 3.1 base score of 4.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L. EPSS exploitation probability: 0.3%.

Which versions of Mattermost Mobile are affected by CVE-2025-0476?

CVE-2025-0476 presents moderate security risk rated CVSS 4.3. Exploitation could compromise the security of affected deployments.

How to fix or mitigate CVE-2025-0476?

During next maintenance window: Identify affected systems and apply vendor patches when convenient. Monitor vendor channels for patch availability.

Mattermost Mobile CVE-2025-0476

MEDIUM

Improper Validation of Specified Type of Input (CWE-1287)

2025-01-16 responsibledisclosure@mattermost.com

Denial Of Service Mattermost Mobile

4.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.3 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:04 vuln.today

CVE Published

Jan 16, 2025 - 00:15 nvd

MEDIUM 4.3

DescriptionCVE.org

AnalysisAI

Mattermost Mobile Apps versions <=2.22.0 fail to properly handle specially crafted attachment names, which allows an attacker to crash the mobile app for any user who opened a channel containing the. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-1287. Mattermost Mobile Apps versions <=2.22.0 fail to properly handle specially crafted attachment names, which allows an attacker to crash the mobile app for any user who opened a channel containing the specially crafted attachment Affected products include: Mattermost Mattermost Mobile.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.